Sand Box

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  • aa - noun a dry form of lava resembling clinkers;  an associate degree in arts;  an international organization that provides a support group for persons trying to overcome alcoholism.
  • aaron - noun (Old Testament) elder brother of Moses and first high priest of the Israelites; created the golden calf;  United States professional baseball player who hit more home runs than Babe Ruth (born in 1934).
  • ab - noun the blood group whose red cells carry both the A and B antigens;  the eleventh month of the civil year; the fifth month of the ecclesiastical year in the Jewish calendar (in July and August);  the muscles of the abdomen;  a bachelor's degree in arts and sciences.
  • abate - verb become less in amount or intensity;  make less active or intense.
  • abbreviated - adj. (of clothing) very short;  cut short in duration.
  • abc - noun the elementary stages of any subject (usually plural).
  • abdomen - noun the region of the body of a vertebrate between the thorax and the pelvis;  the cavity containing the major viscera; in mammals it is separated from the thorax by the diaphragm.
  • abdominal - adj. of or relating to or near the abdomen;  noun the muscles of the abdomen.
  • abducens - noun a small motor nerve supplying the lateral rectus muscle of the eye.
  • abduct - verb pull away from the body;  take away to an undisclosed location against their will and usually in order to extract a ransom.
  • abducted - adj. (of persons) seized and detained unlawfully, often for ransom.
  • abducting - adj. especially of muscles; drawing away from the midline of the body or from an adjacent part.
  • abduction - noun (physiology) moving of a body part away from the central axis of the body;  the criminal act of capturing and carrying away by force a family member; if a man's wife is abducted it is a crime against the family relationship and against the wife.
  • abductor - noun a muscle that draws a body part away from the median line;  someone who unlawfully seizes and detains a victim (usually for ransom).
  • aberrant - adj. markedly different from an accepted norm;  noun one whose behavior departs substantially from the norm of a group.
  • aberration - noun an optical phenomenon resulting from the failure of a lens or mirror to produce a good image;  a disorder in one's mental state;  a state or condition markedly different from the norm.
  • ability - noun the quality of being able to perform; a quality that permits or facilitates achievement or accomplishment;  possession of the qualities (especially mental qualities) required to do something or get something done.
  • ablate - verb remove an organ or bodily structure;  wear away through erosion or vaporization.
  • ablation - noun surgical removal of a body part or tissue;  the erosive process that reduces the size of glaciers.
  • able - adj. (usually followed by `to') having the necessary means or skill or know-how or authority to do something;  having inherent physical or mental ability or capacity;  have the skills and qualifications to do things well;  having a strong healthy body.
  • abnormal - adj. much greater than the normal;  not normal; not typical or usual or regular or conforming to a norm;  departing from the normal in e.g. intelligence and development.
  • abnormality - noun behavior that breaches the rule or etiquette or custom or morality;  marked strangeness as a consequence of being abnormal;  retardation sufficient to fall outside the normal range of intelligence;  an abnormal condition.
  • abnormally - adv. in an abnormal manner.
  • abo - noun a dark-skinned member of a race of people living in Australia when Europeans arrived.
  • aboard - adv. on first or second or third base;  on a ship, train, plane or other vehicle;  part of a group;  side by side.
  • about - adj. on the move;  adv. in the area or vicinity;  all around or on all sides;  in or to a reversed position or direction;  to or among many different places or in no particular direction;  (of actions or states) slightly short of or not quite accomplished;  in rotation or succession;  (of quantities) imprecise but fairly close to correct.
  • above - adj. appearing earlier in the same text;  adv. at an earlier place;  in or to a place that is higher;  noun an earlier section of a written text.
  • abrasion - noun erosion by friction;  an abraded area where the skin is torn or worn off;  the wearing down of rock particles by friction due to water or wind or ice.
  • abrasive - adj. causing abrasion;  sharply disagreeable; rigorous; noun a substance that abrades or wears down.
  • abruptly - adv. quickly and without warning.
  • abs - noun any of a class of composite plastics used to make car bodies and cases for computers and other appliances.
  • absence - noun failure to be present;  the state of being absent;  the time interval during which something or somebody is away;  epilepsy characterized by paroxysmal attacks of brief clouding of consciousness (a possible other abnormalities).
  • absent - adj. lost in thought; showing preoccupation;  not in a specified place physically or mentally;  verb go away or leave.
  • absolute - adj. perfect or complete or pure;  not capable of being violated or infringed;  complete and without restriction or qualification; sometimes used informally as intensifiers;  without conditions or limitations;  not limited by law;  expressing finality with no implication of possible change;  noun something that is conceived to be absolute; something that does not depends on anything else and is beyond human control.
  • absolutely - adv. totally and definitely; without question;  completely and without qualification; used informally as intensifiers.
  • absorb - verb cause to become one with;  engage or engross wholly; take up mentally;  assimilate or take in;  take in, also metaphorically; become imbued;  take up, as of debts or payments;  suck or take up or in;  engross (oneself) fully.
  • absorbable - adj. capable of being absorbed or taken in through the pores of a surface.
  • absorbed - adj. taken in through the pores of a surface;  retained without reflection;  giving or marked by complete attention to.
  • absorber - noun (physics) material in a nuclear reactor that absorbs radiation.
  • absorbing - adj. capable of arousing and holding the attention.
  • absorption - noun (chemistry) a process in which one substance permeates another; a fluid permeates or is dissolved by a liquid or solid;  (physics) the process in which incident radiated energy is retained without reflection or transmission on passing through a medium;  the mental state of being preoccupied by something; complete attention; intense mental effort;  the process of absorbing nutrients into the body after digestion;  the social process of absorbing one cultural group into harmony with another.
  • absorptive - adj. having power or capacity or tendency to absorb or soak up something (liquids or energy etc.).
  • abstract - adj. existing only in the mind; separated from embodiment;  dealing with a subject in the abstract without practical purpose or intention;  not representing or imitating external reality or the objects of nature;  noun a concept or idea not associated with any specific instance;  a sketchy summary of the main points of an argument or theory;  verb consider a concept without thinking of a specific example; consider abstractly or theoretically;  consider apart from a particular case or instance;  give an abstract (of);  make off with belongings of others.
  • abundance - noun the property of a more than adequate quantity or supply;  (chemistry) the ratio of the total mass of an element in the earth's crust to the total mass of the earth's crust; expressed as a percentage or in parts per million;  (physics) the ratio of the number of atoms of a specific isotope of an element to the total number of isotopes present.
  • abundant - adj. present in great quantity.
  • abundantly - adv. in an abundant manner.
  • abuse - noun a rude expression intended to offend or hurt;  cruel or inhumane treatment;  improper or excessive use;  verb use wrongly or improperly or excessively;  use foul or abusive language towards; change the inherent purpose or function of something;  treat badly.
  • ac - noun an electric current that reverses direction sinusoidally;  a radioactive element of the actinide series; found in uranium ores.
  • academic - adj. hypothetical or theoretical and not expected to produce an immediate or practical result;  marked by a narrow focus on or display of learning especially its trivial aspects;  associated with academia or an academy;  noun an educator who works at a college or university.
  • academy - noun a learned establishment for the advancement of knowledge;  a school for special training;  a secondary school (usually private);  an institution for the advancement of art or science or literature.
  • accelerated - adj. caused to go more rapidly;  speeded up, as of an academic course.
  • acceleration - noun the act of accelerating; increasing the speed; an increase in rate of change;  (physics) a rate of increase of velocity.
  • accelerator - noun a valve that regulates the supply of fuel to the engine;  a scientific instrument that increases the kinetic energy of charged particles;  a pedal that controls the throttle valve;  (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected.
  • accept - verb tolerate or accommodate oneself to;  consider or hold as true;  be sexually responsive to, used of a female domesticated mammal;  react favorably to; consider right and proper;  give an affirmative reply to; respond favorably to;  receive (a report) officially, as from a committee;  receive willingly something given or offered; admit into a group or community;  be designed to hold or take;  make use of or accept for some purpose;  take on as one's own the expenses or debts of another person.
  • acceptance - noun the act of taking something that is offered; (contract law) words signifying consent to the terms of an offer (thereby creating a contract);  banking: a time draft drawn on and accepted by a bank;  the state of being acceptable and accepted;  the act of accepting with approval; favorable reception;  a disposition to tolerate or accept people or situations;  the mental attitude that something is believable and should be accepted as true.
  • accepted - adj. generally approved or compelling recognition; generally agreed upon; not subject to dispute;  widely accepted as true or worthy;  widely or permanently accepted;  generally accepted or used;  judged to be in conformity with approved usage.
  • accepting - adj. tolerating without protest.
  • acceptor - noun the person (or institution) who accepts a check or draft and becomes responsible for paying the party named in the draft when it matures;  (chemistry) in the formation of a coordinate bond it is the compound to which electrons are donated.
  • access - noun the act of approaching or entering;  a way of entering or leaving;  (computer science) the operation of reading or writing stored information;  the right to obtain or make use of or take advantage of something (as services or membership);  a code (a series of characters or digits) that must be entered in some way (typed or dialed or spoken) to get the use of something (a telephone line or a computer or a local area network etc.);  the right to enter; verb reach or gain access to;  obtain or retrieve from a storage device; as of information on a computer.
  • accessible - adj. capable of being reached;  easy to get along with or talk to; friendly;  easily obtained;  capable of being read with comprehension.
  • accessory - adj. furnishing added support;  noun a supplementary component that improves capability;  clothing that is worn or carried, but not part of your main clothing;  someone who helps another person commit a crime.
  • accident - noun anything that happens by chance without an apparent cause;  a mishap; especially one causing injury or death.
  • accidental - adj. without intention (especially resulting from heedless action);  associated by chance and not an integral part; occurring or appearing or singled out by chance;  noun a musical notation that makes a note sharp or flat or natural although that is not part of the key signature.
  • acclimate - verb get used to a certain climate.
  • acclimation - noun adaptation to a new climate (a new temperature or altitude or environment).
  • acclimatization - noun adaptation to a new climate (a new temperature or altitude or environment).
  • accommodate - verb make compatible with;  provide with something desired or needed;  have room for; hold without crowding;  make fit for, or change to suit a new purpose;  provide a service or favor for someone;  provide housing for;  be agreeable or acceptable to.
  • accommodation - noun (physiology) the automatic adjustment in focal length of the lens of the eye;  the act of providing something (lodging or seat or food) to meet a need;  living quarters provided for public convenience;  in the theories of Jean Piaget: the modification of internal representations in order to accommodate a changing knowledge of reality;  a settlement of differences;  making or becoming suitable; adjusting to circumstances.
  • accompanied - adj. having accompaniment or companions or escort.
  • accompany - verb go or travel along with;  perform an accompaniment to;  be associated with;  be a companion to somebody.
  • accompanying - adj. following as a consequence.
  • accomplish - verb put in effect;  to gain with effort.
  • accomplished - adj. successfully completed or brought to an end; settled securely and unconditionally;  highly skilled.
  • accordance - noun the act of granting rights;  concurrence of opinion.
  • according - adj. (followed by `to') as reported or stated by;  (followed by `to') in agreement with or accordant with.
  • accordingly - adv. in accordance with;  (sentence connectors) because of the reason given.
  • account - noun the quality of taking advantage;  importance or value;  a statement of recent transactions and the resulting balance; a formal contractual relationship established to provide for regular banking or brokerage or business services;  a record or narrative description of past events;  an itemized statement of money owed for goods shipped or services rendered;  a short account of the news;  a statement that makes something comprehensible by describing the relevant structure or operation or circumstances etc.;  the act of informing by verbal report;  grounds;  verb furnish a justifying analysis or explanation;  keep an account of;  be the sole or primary factor in the existence, acquisition, supply, or disposal of something;  to give an account or representation of in words.
  • accountability - noun responsibility to someone or for some activity.
  • accounting - noun a system that provides quantitative information about finances;  a convincing explanation that reveals basic causes; a bookkeeper's chronological list of related debits and credits of a business; forms part of a ledger of accounts;  the occupation of maintaining and auditing records and preparing financial reports for a business;  a statement of recent transactions and the resulting balance.
  • accredited - adj. given official approval to act.
  • accumulate - verb collect or gather;  get or gather together.
  • accumulated - adj. brought together into a group or crowd; periodically accumulated over time.
  • accumulation - noun the act of accumulating;  (finance) profits that are not paid out as dividends but are added to the capital base of the corporation;  several things grouped together or considered as a whole;  an increase by natural growth or addition.
  • accuracy - noun the quality of being near to the true value; (mathematics) the number of significant figures given in a number.
  • accurate - adj. conforming exactly or almost exactly to fact or to a standard or performing with total accuracy;  (of ideas, images, representations, expressions) characterized by perfect conformity to fact or truth ; strictly correct.
  • accurately - adv. with few mistakes;  strictly correctly.
  • accustomed - adj. (often followed by `to') in the habit of or adapted to;  commonly used or practiced; usual.
  • ace - adj. of the highest quality;  noun a serve that the receiver is unable to reach;  one of four playing cards in a deck having a single pip on its face;  someone who is dazzlingly skilled in any field;  a major strategic headquarters of NATO; safeguards an area extending from Norway to Turkey;  verb serve an ace against (someone);  play (a hole) in one stroke;  score an ace against; succeed at easily.
  • acellular - adj. not made up of or divided into cells.
  • acetabular - adj. of the cup-shaped socket that receives the head of the thigh bone.
  • acetabulum - noun the cup-shaped hollow in the hipbone into which the head of the femur fits to form a ball-and-socket joint.
  • acetaldehyde - noun a colorless volatile water-soluble liquid aldehyde used chiefly in manufacture of acetic acid and perfumes and drugs.
  • acetate - noun a salt or ester of acetic acid;  a fabric made from fibers of cellulose acetate.
  • acetic - adj. relating to or containing acetic acid.
  • acetone - noun the simplest ketone; a highly inflammable liquid widely used as an organic solvent and as material for making plastics.
  • acetyl - noun the organic group of acetic acid (CH3CO-).
  • acetylcholine - noun a neurotransmitter that is a derivative of choline; released at the ends of nerve fibers in the somatic and parasympathetic nervous systems.
  • ache - noun a dull persistent (usually moderately intense) pain;  verbhave a desire for something or someone who is not present;  be the source of pain;  feel physical pain.
  • achieve - verb to gain with effort.
  • achilles - noun a mythical Greek hero of the Iliad; a foremost Greek warrior at the siege of Troy; when he was a baby his mother tried to make him immortal by bathing him in a magical river but the heel by which she held him remained vulnerable--his `Achilles' heel'.
  • aching - adj. causing a dull and steady pain;  noun a dull persistent (usually moderately intense) pain.
  • achondroplastic - adj. of or relating to achondroplasia.
  • acid - adj. having the characteristics of an acid;  harsh or corrosive in tone;  being sour to the taste;  noun street name for lysergic acid diethylamide;  any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt.
  • acidic - adj. being or containing an acid; of a solution having an excess of hydrogen atoms (having a pH of less than 7);  being sour to the taste.
  • acidify - verb turn acidic;  make sour or more sour.
  • acidity - noun pH values below 7;  the taste experience when something acidic is taken into the mouth;  the property of being acidic.
  • acidosis - noun abnormally high acidity (excess hydrogen-ion concentration) of the blood and other body tissues.
  • acinar - adj. pertaining to the individual parts making up an aggregate fruit like a blackberry;  pertaining to one of the small sacs (as in a compound gland).
  • acinus - noun one of the small sacs or saclike dilations in a compound gland;  one of the small drupes making up an aggregate or multiple fruit like a blackberry.
  • acknowledge - verb accept (someone) to be what is claimed or accept his power and authority;  accept as legally binding and valid; express obligation, thanks, or gratitude for;  report the receipt of; declare to be true or admit the existence or reality or truth of; express recognition of the presence or existence of, or acquaintance with.
  • acne - noun an inflammatory disease involving the sebaceous glands of the skin; characterized by papules or pustules or comedones.
  • acoustic - adj. of or relating to the science of acoustics;  noun a remedy for hearing loss or deafness.
  • acquaint - verb inform;  make familiar or acquainted;  cause to come to know personally.
  • acquire - verb win something through one's efforts;  locate (a moving entity) by means of a tracking system such as radar;  come to have or undergo a change of (physical features and attributes);  take on a certain form, attribute, or aspect;  gain through experience;  gain knowledge or skills;  come into the possession of something concrete or abstract.
  • acquired - adj. gotten through environmental forces.
  • acquiring - noun the act of acquiring something.
  • acrobat - noun an athlete who performs acts requiring skill and agility and coordination.
  • acromegaly - noun enlargement of bones of hands and feet and face; often accompanied by headache and muscle pain and emotional disturbances; caused by overproduction of growth hormone by the anterior pituitary gland (due to a tumor).
  • acromion - noun the outermost point of the spine of the shoulder blade.
  • acrosome - noun a process at the anterior end of a sperm cell that produces enzymes to facilitate penetration of the egg.
  • across - adv. transversely;  to the opposite side.
  • act - noun something that people do or cause to happen;  a legal document codifying the result of deliberations of a committee or society or legislative body;  a short theatrical performance that is part of a longer program;  a subdivision of a play or opera or ballet;  a manifestation of insincerity;  verb behave in a certain manner; show a certain behavior; conduct or comport oneself;  pretend to have certain qualities or state of mind;  discharge one's duties;  play a role or part;  perform on a stage or theater;  perform an action, or work out or perform (an action);  be engaged in an activity, often for no particular purpose other than pleasure;  be suitable for theatrical performance;  behave unnaturally or affectedly;  have an effect or outcome; often the one desired or expected.
  • acth - noun a hormone produced by the anterior pituitary gland that stimulates the adrenal cortex.
  • actin - noun one of the proteins into which actomyosin can be split; can exist in either a globular or a fibrous form.
  • acting - adj. serving temporarily especially as a substitute;  noun the performance of a part or role in a drama.
  • action - noun something done (usually as opposed to something said);  the most important or interesting work or activity in a specific area or field;  an act by a government body or supranational organization;  the operating part that transmits power to a mechanism;  the trait of being active and energetic and forceful;  the series of events that form a plot;  the state of being active;  a military engagement;  a judicial proceeding brought by one party against another; one party prosecutes another for a wrong done or for protection of a right or for prevention of a wrong;  a process existing in or produced by nature (rather than by the intent of human beings); verb institute legal proceedings against; file a suit against;  put in effect.
  • activate - verb make active or more active;  make (substances) radioactive;  aerate (sewage) so as to favor the growth of organisms that decompose organic matter;  make more adsorptive;  put in motion or move to act.
  • activated - adj. set up and placed on active assignment;  rendered active; e.g. rendered radioactive or luminescent or photosensitive or conductive;  (of e.g. a molecule) made reactive or more reactive;  (of sewage) treated with aeration and bacteria to aid decomposition.
  • activating - adj. causing motion or action or change;  noun the activity of causing to have energy and be active.
  • activation - noun making active and effective (as a bomb); stimulation of activity in an organism or chemical;  the activity of causing to have energy and be active.
  • activator - noun (biology) any agency bringing about activation; a molecule that increases the activity of an enzyme or a protein that increases the production of a gene product in DNA transcription.
  • active - adj. characterized by energetic activity;  engaged in full-time work;  full of activity or engaged in continuous activity;  tending to become more severe or wider in scope;  disposed to take action or effectuate change;  (of e.g. volcanos) erupting or liable to erupt;  (of e.g. volcanos) capable of erupting;  expressing action rather than a state of being; used of verbs (e.g. `to run') and participial adjectives (e.g. `running' in `running water');  expressing that the subject of the sentence has the semantic function of actor: "Hemingway favors active constructions";  exerting influence or producing a change or effect;  of the sun; characterized by a high level activity in sunspots and flares and radio emissions;  in operation;  taking part in an activity;  engaged in or ready for military or naval operations;  noun a person devoted to the active life;  the voice used to indicate that the grammatical subject of the verb is performing the action or causing the happening denoted by the verb;  chemical agent capable of activity.
  • active site - noun the part of an enzyme or antibody where the chemical reaction occurs.
  • active transport - noun transport of a substance (as a protein or drug) across a cell membrane against the concentration gradient; requires an expenditure of energy.
  • actively - adv. in an active manner.
  • activity - noun any specific behavior;  (chemistry) the capacity of a substance to take part in a chemical reaction;  the trait of being active; moving or acting rapidly and energetically;  an organic process that takes place in the body;  a process existing in or produced by nature (rather than by the intent of human beings);  the state of being active.
  • actor - noun a theatrical performer;  a person who acts and gets things done.
  • acts - noun a New Testament book describing the development of the early church from Christ's Ascension to Paul's sojourn at Rome.
  • actual - adj. presently existing in fact and not merely potential or possible;  being or existing at the present moment;  taking place in reality; not pretended or imitated;  existing in act or fact;  being or reflecting the essential or genuine character of something;  existing in fact whether with lawful authority or not.
  • actuality - noun the state of actually existing objectively.
  • actually - adv. used to imply that one would expect the fact to be the opposite of that stated; surprisingly;  in actual fact;  as a sentence modifier to add slight emphasis;  at the present moment.
  • acuity - noun sharpness of vision; the visual ability to resolve fine detail (usually measured by a Snellen chart);  a quick and penetrating intelligence.
  • acupuncture - noun treatment of pain or disease by inserting the tips of needles at specific points on the skin.
  • acute - adj. having or experiencing a rapid onset and short but severe course;  of critical importance and consequence;  extremely sharp or intense;  having or demonstrating ability to recognize or draw fine distinctions;  of an angle; less than 90 degrees;  ending in a sharp point;  noun a mark (') placed above a vowel to indicate pronunciation.
  • acyl - noun any group or radical of the form RCO- where R is an organic group.
  • ad - adv. in the Christian era; used before dates after the supposed year Christ was born;  noun a public promotion of some product or service.
  • adage - noun a condensed but memorable saying embodying some important fact of experience that is taken as true by many people.
  • adam - noun street names for methylenedioxymethamphetamine; (Old Testament) in Judeo-Christian mythology; the first man and the husband of Eve and the progenitor of the human race;  Scottish architect who designed many public buildings in England and Scotland (1728-1792).
  • adapt - verb make fit for, or change to suit a new purpose;  adapt or conform oneself to new or different conditions.
  • adaptable - adj. capable of adapting (of becoming or being made suitable) to a particular situation or use.
  • adaptation - noun (physiology) the responsive adjustment of a sense organ (as the eye) to varying conditions (as of light);  a written work (as a novel) that has been recast in a new form;  the process of adapting to something (such as environmental conditions).
  • adapted - adj. changed in order to improve or made more fit for a particular purpose.
  • adaptive - adj. having a capacity for adaptation.
  • add - noun a condition (mostly in boys) characterized by behavioral and learning disorders;  verb make an addition (to); join or combine or unite with others; increase the quality, quantity, size or scope of; make an addition by combining numbers;  state or say further; constitute an addition;  determine the sum of;  bestow a quality on.
  • addiction - noun (Roman law) a formal award by a magistrate of a thing or person to another person (as the award of a debtor to his creditor); a surrender to a master;  an abnormally strong craving; being abnormally tolerant to and dependent on something that is psychologically or physically habit-forming (especially alcohol or narcotic drugs).
  • addition - noun the act of adding one thing to another;  a component that is added to something to improve it;  a suburban area laid out in streets and lots for a future residential area;  a quantity that is added; the arithmetic operation of summing; calculating the sum of two or more numbers;  something added to what you already have.
  • additional - adj. further or added.
  • additionally - adv. by way of addition; furthermore.
  • address - noun the stance assumed by a golfer in preparation for hitting a golf ball;  (computer science) the code that identifies where a piece of information is stored;  written directions for finding some location; written on letters or packages that are to be delivered to that location;  a sign in front of a house or business carrying the conventional form by which its location is described;  the manner of speaking to another individual;  the act of delivering a formal spoken communication to an audience;  the place where a person or organization can be found or communicated with;  social skill;  verbadjust and aim (a golf ball) at in preparation of hitting;  speak to;  give a speech to;  speak to someone;  put an address on (an envelope); direct a question at someone;  address or apply oneself to something, direct one's efforts towards something, such as a question;  access or locate by address;  greet, as with a prescribed form, title, or name;  deal with verbally or in some form of artistic expression.
  • addressed - adj. (of mail) marked with a destination.
  • adduct - noun a compound formed by an addition reaction;  verbdraw a limb towards the body.
  • adducting - adj. especially of muscles; bringing together or drawing toward the midline of the body or toward an adjacent part.
  • adduction - noun (physiology) moving of a body part toward the central axis of the body.
  • adductor - noun a muscle that draws a body part toward the median line.
  • adenine - noun (biochemistry) purine base found in DNA and RNA; pairs with thymine in DNA and with uracil in RNA.
  • adenohypophysis - noun the anterior lobe of the pituitary body; primarily glandular in nature.
  • adenoid - adj. relating to or resembling lymphatic glands or lymphoid tissue;  noun a collection of lymphatic tissue in the throat behind the uvula (on the posterior wall and roof of the nasopharynx).
  • adenosine - noun (biochemistry) a nucleoside that is a structural component of nucleic acids; it is present in all living cells in a combined form as a constituent of DNA and RNA and ADP and ATP and AMP.
  • adept - adj. having or showing knowledge and skill and aptitude; noun someone who is dazzlingly skilled in any field.
  • adequate - adj. (sometimes followed by `to') meeting the requirements especially of a task;  about average; acceptable; enough to meet a purpose.
  • adequately - adv. in an adequate manner;  in an adequate manner or to an adequate degree.
  • adh - noun hormone secreted by the posterior pituitary gland (trade name Pitressin) and also by nerve endings in the hypothalamus; affects blood pressure by stimulating capillary muscles and reduces urine flow by affecting reabsorption of water by kidney tubules.
  • adhere - verb follow through or carry out a plan without deviation; stick to firmly;  be a devoted follower or supporter;  be compatible or in accordance with;  come or be in close contact with; stick or hold together and resist separation;  be loyal to.
  • adherence - noun faithful support for a religion or cause or political party;  the property of sticking together (as of glue and wood) or the joining of surfaces of different composition.
  • adhesion - noun a fibrous band of scar tissue that binds together normally separate anatomical structures;  abnormal union of bodily tissues; most common in the abdomen;  faithful support for a religion or cause or political party;  the property of sticking together (as of glue and wood) or the joining of surfaces of different composition.
  • adhesive - adj. tending to adhere;  noun a substance that unites or bonds surfaces together.
  • adhesiveness - noun the property of sticking together (as of glue and wood) or the joining of surfaces of different composition.
  • adipose - adj. composed of animal fat.
  • adjacent - adj. near or close to but not necessarily touching;  nearest in space or position; immediately adjoining without intervening space;  having a common boundary or edge; touching.
  • adjective - adj. relating to court practice and procedure as opposed to the principles of law;  of or relating to or functioning as an adjective;  noun the word class that qualifies nouns;  a word that expresses an attribute of something.
  • adjoin - verb attach or add;  be in direct physical contact with; make contact;  lie adjacent to another or share a boundary.
  • adjoining - adj. having a common boundary or edge; touching.
  • adjust - verb adapt or conform oneself to new or different conditions;  alter or regulate so as to achieve accuracy or conform to a standard;  make correspondent or conformable;  decide how much is to be paid on an insurance claim;  place in a line or arrange so as to be parallel or straight.
  • adjusted - adj. altered to accommodate to certain requirements or bring into a proper relation;  adjusted to demands of daily living; showing emotional stability;  (especially of garments) having the fit or style adjusted;  having achieved a comfortable relation with your environment.
  • adjustment - noun the act of adjusting something to match a standard;  making or becoming suitable; adjusting to circumstances; the act of making something different (as e.g. the size of a garment); an amount added or deducted on the basis of qualifying circumstances;  the process of adapting to something (such as environmental conditions).
  • administer - verb give or apply (medications);  administer ritually; of church sacraments;  work in an administrative capacity; supervise; administer or bestow, as in small portions.
  • administration - noun the act of administering medication;  a method of tending to (especially business) matters;  the persons (or committees or departments etc.) who make up a body for the purpose of administering something;  the tenure of a president.
  • adolescence - noun in the state that someone is in between puberty and adulthood;  the time period between the beginning of puberty and adulthood.
  • adolescent - adj. in the state of development between puberty and maturity;  displaying or suggesting a lack of maturity;  being of the age 13 through 19;  relating to or peculiar to or suggestive of an adolescent;  noun a juvenile between the onset of puberty and maturity.
  • adoption - noun the act of accepting with approval; favorable reception;  a legal proceeding that creates a parent-child relation between persons not related by blood; the adopted child is entitled to all privileges belonging to a natural child of the adoptive parents (including the right to inherit);  the appropriation (of ideas or words etc) from another source.
  • adp - noun data processing by a computer;  an ester of adenosine that is converted to ATP for energy storage.
  • adps - noun a system of one or more computers and associated software with common storage.
  • adrenal - adj. of or pertaining to the adrenal glands or their secretions;  near the kidneys;  noun either of a pair of complex endocrine glands situated near the kidney.
  • adrenalin - noun a catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve action.
  • adrenaline - noun a catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve action.
  • adrenergic - adj. relating to epinephrine (its release or action);  noundrug that has the effects of epinephrine.
  • adrenocorticotrophic - adj. stimulating or acting on the adrenal cortex.
  • adrenocorticotropic - adj. stimulating or acting on the adrenal cortex.
  • adult - adj. (of animals) fully developed;  noun any mature animal;  a fully developed person from maturity onward.
  • adulthood - noun the state (and responsibilities) of a person who has attained maturity;  the period of time in your life after your physical growth has stopped and you are fully developed.
  • advance - adj. situated ahead or going before;  being ahead of time or need;  noun increase in price or value;  an amount paid before it is earned;  the act of moving forward toward a goal;  a tentative suggestion designed to elicit the reactions of others;  a change for the better; progress in development;  a movement forward;  verb rise in rate or price;  develop further;  bring forward for consideration or acceptance;  move forward, also in the metaphorical sense;  cause to move forward;  move forward;  pay in advance;  develop in a positive way;  increase or raise;  obtain advantages, such as points, etc.;  give a promotion to or assign to a higher position;  contribute to the progress or growth of.
  • advanced - adj. (of societies) highly developed especially in technology or industry;  far along in time;  comparatively late in a course of development;  ahead in development; complex or intricate; at a higher level in training or knowledge or skill;  farther along in physical or mental development;  ahead of the times;  situated ahead or going before.
  • advancement - noun gradual improvement or growth or development;  the act of moving forward toward a goal; encouragement of the progress or growth or acceptance of something.
  • advantage - noun benefit resulting from some event or action;  the quality of having a superior or more favorable position;  (tennis) first point scored after deuce;  verb give an advantage to.
  • advent - noun arrival that has been awaited (especially of something momentous);  the season including the four Sundays preceding Christmas;  (Christian theology) the reappearance of Jesus as judge for the Last Judgment.
  • adventitia - noun an enveloping or covering membrane or layer of body tissue.
  • adventitial - adj. of or pertaining to the adventitia.
  • adverse - adj. in an opposing direction;  contrary to your interests or welfare.
  • advertisement - noun a public promotion of some product or service.
  • advice - noun a proposal for an appropriate course of action.
  • advisable - adj. worthy of being recommended or suggested; prudent or wise.
  • advise - verb inform (somebody) of something;  give advice to;  make a proposal, declare a plan for something.
  • advised - adj. having received information;  having the benefit of careful prior consideration or counsel.
  • advisor - noun an expert who gives advice.
  • aerobic - adj. depending on free oxygen or air;  based on or using the principles of aerobics; enhancing respiratory and circulatory efficiency.
  • affect - noun the conscious subjective aspect of feeling or emotion; verb act physically on; have an effect upon;  have an effect upon; have an emotional or cognitive impact upon;  make believe with the intent to deceive;  connect closely and often incriminatingly.
  • affected - adj. acted upon; influenced;  speaking or behaving in an artificial way to make an impression;  being excited or provoked to the expression of an emotion.
  • affecting - adj. arousing affect.
  • affective - adj. characterized by emotion.
  • afferent - adj. of nerves and nerve impulses; conveying sensory information from the sense organs to the CNS;  noun a nerve that passes impulses from receptors toward or to the central nervous system.
  • affinity - noun a natural attraction or feeling of kinship;  inherent resemblance between persons or things;  the force attracting atoms to each other and binding them together in a molecule; (immunology) the attraction between an antigen and an antibody;  a close connection marked by community of interests or similarity in nature or character;  (biology) state of relationship between organisms or groups of organisms resulting in resemblance in structure or structural parts;  (anthropology) kinship by marriage or adoption; not a blood relationship.
  • afflicted - adj. mentally or physically unfit;  grievously affected especially by disease.
  • afford - verb be able to spare or give up;  afford access to;  have the financial means to do something or buy something;  be the cause or source of.
  • affordable - adj. that you have the financial means for.
  • africa - noun the second largest continent; located south of Europe and bordered to the west by the South Atlantic and to the east by the Indian Ocean.
  • african - adj. of or relating to the nations of Africa or their peoples; noun a native or inhabitant of Africa.
  • african-american - adj. pertaining to or characteristic of Americans of African ancestry;  noun an American whose ancestors were born in Africa.
  • after - adj. located farther aft;  adv. behind or in the rear;  happening at a time subsequent to a reference time.
  • afterbirth - noun the placenta and fetal membranes that are expelled from the uterus after the baby is born.
  • afternoon - noun the part of the day between noon and evening;  a conventional expression of greeting or farewell.
  • afterward - adv. happening at a time subsequent to a reference time.
  • again - adv. anew.
  • age - noun how long something has existed;  a time in life (usually defined in years) at which some particular qualification or power arises;  a late time of life;  a prolonged period of time;  an era of history having some distinctive feature;  verb begin to seem older; get older;  make older;  grow old or older.
  • age-related - adj. changing (increasing or decreasing) as an individual's age increases.
  • aged - adj. (used of tobacco) aging as a preservative process (`aged' is pronounced as one syllable);  of wines, fruit, cheeses; having reached a desired or final condition; (`aged' pronounced as one syllable);  advanced in years; (`aged' is pronounced as two syllables);  having attained a specific age; (`aged' is pronounced as one syllable);  at an advanced stage of erosion (pronounced as one syllable);  noun people who are old collectively.
  • agent - noun an active and efficient cause; capable of producing a certain effect;  a businessman who buys or sells for another in exchange for a commission;  a representative who acts on behalf of other persons or organizations;  any agent or representative of a federal agency or bureau;  a substance that exerts some force or effect;  the semantic role of the animate entity that instigates or causes the happening denoted by the verb in the clause.
  • agglutinate - adj. united as if by glue;  verb clump together; as of bacteria, red blood cells, etc.;  string together (morphemes in an agglutinating language).
  • agglutination - noun the building of words from component morphemes that retain their form and meaning in the process of combining;  a clumping of bacteria or red cells when held together by antibodies (agglutinins);  the coalescing of small particles that are suspended in solution; these larger masses are then (usually) precipitated.
  • aggravating - adj. making worse.
  • aggregate - adj. gathered or tending to gather into a mass or whole; formed of separate units in a cluster;  noun a sum total of many heterogenous things taken together;  the whole amount;  verb gather in a mass, sum, or whole;  amount in the aggregate to.
  • aggregation - noun the act of gathering something together;  several things grouped together or considered as a whole.
  • aggression - noun violent action that is hostile and usually unprovoked;  deliberately unfriendly behavior;  the act of initiating hostilities;  a disposition to behave aggressively;  a feeling of hostility that arouses thoughts of attack.
  • aggressive - adj. having or showing determination and energetic pursuit of your ends;  characteristic of an enemy or one eager to fight;  tending to spread quickly.
  • agile - adj. moving quickly and lightly;  mentally quick.
  • aging - adj. growing old;  noun the organic process of growing older and showing the effects of increasing age;  acquiring desirable qualities by being left undisturbed for some time.
  • agitation - noun the act of agitating something; causing it to move around (usually vigorously);  disturbance usually in protest;  the feeling of being agitated; not calm;  a state of agitation or turbulent change or development;  a mental state of extreme emotional disturbance.
  • agnosia - noun inability to recognize objects by use of the senses.
  • ago - adj. gone by; or in the past;  adv. in the past.
  • agonist - noun (biochemistry) a drug that can combine with a receptor on a cell to produce a physiological reaction;  a muscle that contracts while another relaxes;  someone involved in a contest or battle (as in an agon);  the principal character in a work of fiction.
  • agriculture - noun the class of people engaged in growing food;  the practice of cultivating the land or raising stock;  a large-scale farming enterprise;  the federal department that administers programs that provide services to farmers (including research and soil conservation and efforts to stabilize the farming economy); created in 1862.
  • ahead - adj. having the leading position or higher score in a contest; adv. at or in the front;  ahead of time; in anticipation;  in a forward direction;  leading or ahead in a competition;  to a different or a more advanced time (meaning advanced either toward the present or toward the future);  to a more advanced or advantageous position; toward the future; forward in time.
  • aid - noun the activity of contributing to the fulfillment of a need or furtherance of an effort or purpose;  a resource;  a gift of money to support a worthy person or cause;  the work of providing treatment for or attending to someone or something;  verb improve the condition of;  give help or assistance; be of service.
  • aided - adj. having help; often used as a combining form.
  • aids - noun a serious (often fatal) disease of the immune system transmitted through blood products especially by sexual contact or contaminated needles.
  • aim - noun the action of directing something at an object;  the goal intended to be attained (and which is believed to be attainable);  an anticipated outcome that is intended or that guides your planned actions;  the direction or path along which something moves or along which it lies;  verb propose or intend;  direct (a remark) toward an intended goal;  aim or direct at; as of blows, weapons, or objects such as photographic equipment;  have an ambitious plan or a lofty goal;  specifically design a product, event, or activity for a certain public;  move into a desired direction of discourse;  intend (something) to move towards a certain goal.
  • air - adj. relating to or characteristic of or occurring in the air;  noun a distinctive but intangible quality surrounding a person or thing; medium for radio and television broadcasting;  the region above the ground;  a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of;  once thought to be one of four elements composing the universe (Empedocles);  travel via aircraft;  a succession of notes forming a distinctive sequence;  the mass of air surrounding the Earth;  a slight wind (usually refreshing); verb expose to warm or heated air, so as to dry;  broadcast over the airwaves, as in radio or television;  be broadcast;  expose to cool or cold air so as to cool or freshen;  make public;  expose to fresh air.
  • air-filled - adj. full of air.
  • airborne - adj. moved or conveyed by or through air.
  • airflow - noun the flow of air.
  • airplane - noun an aircraft that has a fixed wing and is powered by propellers or jets.
  • airway - noun a commercial enterprise that provides scheduled flights for passengers;  a duct that provides ventilation (as in mines); the passages through which air enters and leaves the body;  a designated route followed by airplanes in flying from one airport to another.
  • akin - adj. related by blood;  similar or related in quality or character.
  • al - noun a state in the southeastern United States on the Gulf of Mexico; one of the Confederate states during the American Civil War;  a silvery ductile metallic element found primarily in bauxite.
  • ala - noun a wing of an insect;  a flat wing-shaped process or winglike part of an organism.
  • alanine - noun a crystalline amino acid that occurs in many proteins.
  • alar - adj. having or resembling wings;  of or relating to the axil;  nouna chemical sprayed on fruit trees to regulate their growth so the entire crop can be harvested at one time.
  • alarm - noun a device that signals the occurrence of some undesirable event;  an automatic signal (usually a sound) warning of danger;  fear resulting from the awareness of danger;  a clock that wakes sleeper at preset time;  verb warn or arouse to a sense of danger or call to a state of preparedness;  fill with apprehension or alarm; cause to be unpleasantly surprised.
  • alaska - noun a state in northwestern North America; the 49th state admitted to the union.
  • albert - noun prince consort of Queen Victoria of England (1819-1861).
  • albinism - noun the congenital absence of pigmentation in the eyes and skin and hair.
  • albino - noun a person with congenital albinism: white hair and milky skin; eyes are usually pink.
  • albuginea - noun whitish tunic.
  • albumen - noun the white part of an egg; the nutritive and protective gelatinous substance surrounding the yolk consisting mainly of albumin dissolved in water;  a simple water-soluble protein found in many animal tissues and liquids.
  • albumin - noun a simple water-soluble protein found in many animal tissues and liquids.
  • alcohol - noun a liquor or brew containing alcohol as the active agent;  any of a series of volatile hydroxyl compounds that are made from hydrocarbons by distillation.
  • alcoholic - adj. addicted to alcohol;  characteristic of or containing alcohol;  noun a person who drinks alcohol to excess habitually.
  • aldosterone - noun a corticosteroid hormone that is secreted by the cortex of the adrenal gland; regulates salt (sodium and potassium) and water balance.
  • alertness - noun lively attentiveness;  a state of readiness to respond;  the process of paying close and continuous attention.
  • alien - adj. being or from or characteristic of another place or part of the world;  not contained in or deriving from the essential nature of something;  noun a form of life assumed to exist outside the Earth or its atmosphere;  a person who comes from a foreign country; someone who does not owe allegiance to your country;  anyone who does not belong in the environment in which they are found;  verbtransfer property or ownership;  arouse hostility or indifference in where there had formerly been love, affection, or friendliness.
  • align - verb place in a line or arrange so as to be parallel or straight; bring (components or parts) into proper or desirable coordination correlation;  align oneself with a group or a way of thinking;  align with; be or come into adjustment.
  • aligned - adj. brought into agreement or cooperation on the side of a faction, party, or cause;  in a straight line.
  • aligning - adj. causing to fall into line or into position.
  • alignment - noun the act of adjusting or aligning the parts of a device in relation to each other;  the spatial property possessed by an arrangement or position of things in a straight line or in parallel lines;  (astronomy) apparent meeting or passing of two or more celestial bodies in the same degree of the zodiac;  an organization of people (or countries) involved in a pact or treaty.
  • aliment - noun a source of materials to nourish the body;  verb give nourishment to.
  • alimentary - adj. of or providing nourishment.
  • alive - adj. capable of erupting;  possessing life;  (often followed by `with') full of life and spirit;  (followed by `to' or `of') aware of;  having life or vigor or spirit;  (usually followed by `to') showing acute awareness; mentally perceptive;  in operation.
  • alkaline - adj. relating to or containing an alkali; having a pH greater than 7.
  • alkalinity - noun pH values above 7.
  • alkaloid - noun natural bases containing nitrogen found in plants.
  • alkalosis - noun abnormally high alkalinity (low hydrogen-ion concentration) of the blood and other body tissues.
  • all - adj. completely given to or absorbed by;  quantifier; used with either mass or count nouns to indicate the whole number or amount of or every one of a class;  adv. to a complete degree or to the full or entire extent (`whole' is often used informally for `wholly').
  • allantois - noun vascular fetal membrane that develops from the hindgut in embryonic higher vertebrates (reptiles, birds and mammals).
  • allele - noun either of a pair (or series) of alternative forms of a gene that can occupy the same locus on a particular chromosome and that control the same character.
  • allen - noun a soldier of the American Revolution whose troops helped capture Fort Ticonderoga from the British (1738-1789); United States filmmaker and comic actor (1935-);  United States comedienne remembered as the confused but imperturbable partner of her husband, George Burns (1906-1964).
  • allergen - noun any substance that can cause an allergy.
  • allergic - adj. having an allergy or peculiar or excessive susceptibility (especially to a specific factor);  characterized by or caused by allergy.
  • allergy - noun hypersensitivity reaction to a particular allergen; symptoms can vary greatly in intensity.
  • alleviate - verb provide physical relief, as from pain;  make easier.
  • alleviated - adj. (of pain or sorrow) made easier to bear.
  • alliance - noun a formal agreement establishing an association or alliance between nations or other groups to achieve a particular aim; an organization of people (or countries) involved in a pact or treaty; a connection based on kinship or marriage or common interest;  the state of being allied or confederated;  the act of forming an alliance or confederation.
  • allied - adj. joined by treaty or agreement;  related by common characteristics or ancestry;  united in a confederacy or league;  of or relating to or denoting the Allies in World War I;  of or relating to or denoting the Allies in World War II.
  • allies - noun an alliance of nations joining together to fight a common enemy;  in World War I the alliance of Great Britain and France and Russia and all the other nations that became allied with them in opposing the Central Powers;  the alliance of nations that fought the Axis in World War II and which (with subsequent additions) signed the charter of the United Nations in 1945.
  • allocate - verb distribute according to a plan or set apart for a special purpose.
  • allocation - noun (computer science) the assignment of particular areas of a magnetic disk to particular data or instructions;  the act of distributing by allotting or apportioning; distribution according to a plan;  a share set aside for a specific purpose.
  • allotted - adj. given as a task.
  • allow - verb allow or plan for a certain possibility; concede the truth or validity of something;  give or assign a resource to a particular person or cause;  allow the presence of or allow (an activity) without opposing or prohibiting;  let have;  grant as a discount or in exchange;  consent to, give permission;  make it possible through a specific action or lack of action for something to happen;  allow the other (baseball) team to score;  make a possibility or provide opportunity for; permit to be attainable or cause to remain;  afford possibility.
  • allowance - noun the act of allowing;  a permissible difference; allowing some freedom to move within limits;  an amount added or deducted on the basis of qualifying circumstances;  an amount allowed or granted (as during a given period);  a sum granted as reimbursement for expenses;  a reserve fund created by a charge against profits in order to provide for changes in the value of a company's assets;  verb put on a fixed allowance, as of food.
  • almond - noun oval-shaped edible seed of the almond tree;  small bushy deciduous tree native to Asia and North Africa having pretty pink blossoms and highly prized edible nuts enclosed in a hard green hull; cultivated in southern Australia and California.
  • almost - adv. (of actions or states) slightly short of or not quite accomplished.
  • alone - adj. radically distinctive and without equal;  exclusive of anyone or anything else;  isolated from others;  lacking companions or companionship;  adv. without anybody else;  without any others being included or involved.
  • along - adv. with a forward motion;  in accompaniment or as a companion;  in addition (usually followed by `with');  to a more advanced state;  in line with a length or direction (often followed by `by' or `beside').
  • alongside - adv. side by side.
  • alpha - adj. early testing stage of a software or hardware product; first in order of importance;  noun the 1st letter of the Greek alphabet;  the beginning of a series or sequence.
  • alphabet - noun a character set that includes letters and is used to write a language;  the elementary stages of any subject (usually plural).
  • already - adv. prior to a specified or implied time.
  • als - noun thickening of tissue in the motor tracts of the lateral columns and anterior horns of the spinal cord; results in progressive muscle atrophy that starts in the limbs.
  • also - adv. in addition.
  • alter - verb remove the ovaries of;  make an alteration to;  make or become different in some particular way, without permanently losing one's or its former characteristics or essence;  cause to change; make different; cause a transformation;  insert words into texts, often falsifying it thereby.
  • alteration - noun the act of making something different (as e.g. the size of a garment);  the act of revising or altering (involving reconsideration and modification);  an event that occurs when something passes from one state or phase to another.
  • altered - adj. changed in form or character without becoming something else;  having testicles or ovaries removed;  changed in order to improve or made more fit for a particular purpose.
  • altering - noun the sterilization of an animal.
  • alternate - adj. occurring by turns; first one and then the other; every second one of a series;  of leaves and branches etc; first on one side and then on the other in two ranks along an axis; not paired;  allowing a choice;  noun someone who takes the place of another person;  verb do something in turns;  go back and forth; swing back and forth between two states or conditions;  exchange people temporarily to fulfill certain jobs and functions;  reverse (a direction, attitude, or course of action);  be an understudy or alternate for a role.
  • alternately - adv. in an alternating sequence or position.
  • alternating - adj. (of a current) reversing direction;  occurring by turns; first one and then the other.
  • alternation - noun successive change from one thing or state to another and back again;  being regularly exchangeable.
  • alternative - adj. necessitating a choice between mutually exclusive possibilities;  pertaining to unconventional choices;  allowing a choice;  noun one of a number of things from which only one can be chosen.
  • alternatively - adv. in place of, or as an alternative to.
  • altitude - noun elevation especially above sea level or above the earth's surface;  the perpendicular distance from the base of a geometric figure to opposite vertex (or side if parallel);  angular distance above the horizon (especially of a celestial object).
  • alto - adj. (of a musical instrument) second highest member of a group;  of or being the lowest female voice;  of or being the highest male voice; having a range above that of tenor;  noun the pitch range of the lowest female voice;  (of a musical instrument) the second highest instrument in a family of musical instruments;  a singer whose voice lies in the alto clef;  the highest adult male singing voice;  the lowest female singing voice.
  • altogether - adv. with everything included or counted;  to a complete degree or to the full or entire extent (`whole' is often used informally for `wholly');  with everything considered (and neglecting details); noun informal terms for nakedness.
  • aluminum - noun a silvery ductile metallic element found primarily in bauxite.
  • alveolar - adj. pertaining to the tiny air sacs of the lungs;  pertaining to the alveolar ridge;  noun a consonant articulated with the tip of the tongue near the gum ridge.
  • alveolus - noun a tiny sac for holding air in the lungs; formed by the terminal dilation of tiny air passageways;  a bony socket in the alveolar ridge that holds a tooth.
  • always - adv. at all times; all the time and on every occasion; forever; throughout all time;  at any time or in any event;  seemingly without interruption; often and repeatedly.
  • am - noun modulation of the amplitude of the (radio) carrier wave;  a master's degree in arts and sciences;  a radioactive transuranic metallic element; discovered by bombarding uranium with helium atoms.
  • amazing - adj. inspiring awe or admiration or wonder;  surprising greatly.
  • amber - adj. of a medium to dark brownish yellow color;  noun a deep yellow color;  a hard yellowish to brownish translucent fossil resin; used for jewelry.
  • ambient - adj. completely enveloping.
  • ambiguity - noun unclearness by virtue of having more than one meaning;  an expression whose meaning cannot be determined from its context.
  • ambiguous - adj. having more than one possible meaning;  having no intrinsic or objective meaning; not organized in conventional patterns;  open to two or more interpretations; or of uncertain nature or significance; or (often) intended to mislead.
  • ambulatory - adj. relating to or adapted for walking;  able to walk about;  noun a covered walkway (as in a cloister).
  • ameboid - adj. like an amoeba (especially in having a variable irregular shape).
  • american - adj. of or relating to or characteristic of the continents and islands of the Americas;  of or relating to the United States of America or its people or language or culture;  noun a native or inhabitant of a North American or Central American or South American country;  a native or inhabitant of the United States;  the English language as used in the United States.
  • amiable - adj. disposed to please;  diffusing warmth and friendliness.
  • amine - noun a compound derived from ammonia by replacing hydrogen atoms by univalent hydrocarbon radicals.
  • amino - adj. pertaining to or containing any of a group of organic compounds of nitrogen derived from ammonia;  noun the radical -NH2.
  • amiss - adj. not functioning properly;  adv. in an improper or mistaken or unfortunate manner;  in an imperfect or faulty way;  away from the correct or expected course.
  • ammonia - noun a pungent gas compounded of nitrogen and hydrogen (NH3);  a water solution of ammonia.
  • ammonium - noun the ion NH4 derived from ammonia; behaves in many respects like an alkali metal ion.
  • amnesia - noun partial or total loss of memory.
  • amniocentesis - noun (pregnancy) extraction by centesis of amniotic fluid from a pregnant woman (after the 15th week of pregnancy) to aid in the diagnosis of fetal abnormalities.
  • amnion - noun thin innermost membranous sac enclosing the developing embryo of higher vertebrates (reptiles, birds and mammals).
  • amniotic - adj. of or related to the amnion or characterized by developing an amnion.
  • amoeboid - adj. like an amoeba (especially in having a variable irregular shape).
  • amorphous - adj. without real or apparent crystalline form;  lacking the system or structure characteristic of living bodies;  having no definite form or distinct shape.
  • amount - noun how much of something is available;  how much there is of something that you can quantify;  a quantity obtained by the addition of a group of numbers;  a quantity of money;  verb be tantamount or equivalent to;  develop into;  add up in number or quantity.
  • amp - noun the basic unit of electric current adopted under the Systeme International d'Unites;  a nucleotide found in muscle cells and important in metabolism; reversibly convertible to ADP and ATP.
  • ample - adj. affording an abundant supply;  more than enough in size or scope or capacity;  fairly large.
  • amplification - noun (electronics) the act of increasing voltage or power or current;  addition of extra material or illustration or clarifying detail;  the amount of increase in signal power or voltage or current expressed as the ratio of output to input.
  • amplify - verb increase the volume of;  exaggerate or make bigger; increase in size, volume or significance;  to enlarge beyond bounds or the truth.
  • amplitude - noun greatness of magnitude;  the property of copious abundance;  (physics) the maximum displacement of a periodic wave.
  • ampulla - noun a flask that has two handles; used by Romans for wines or oils;  the dilated portion of a canal or duct especially of the semicircular canals of the ear.
  • amputation - noun a surgical removal of all or part of a limb;  a condition of disability resulting from the loss of one or more limbs.
  • amygdala - noun an almond-shaped neural structure in the anterior part of the temporal lobe of the cerebrum; intimately connected with the hypothalamus and the hippocampus and the cingulate gyrus; as part of the limbic system it plays an important role in motivation and emotional behavior.
  • amylase - noun any of a group of proteins found in saliva and pancreatic juice and parts of plants; help convert starch to sugar.
  • amyloid - adj. resembling starch;  noun (pathology) a waxy translucent complex protein resembling starch that results from degeneration of tissue;  a non-nitrogenous food substance consisting chiefly of starch; any substance resembling starch.
  • an - noun an associate degree in nursing.
  • anabolic - adj. characterized by or promoting constructive metabolism;  of or related to the synthetic phase of metabolism.
  • anabolism - noun the synthesis in living organisms of more complex substances (e.g., living tissue) from simpler ones together with the storage of energy.
  • anaerobic - adj. living or active in the absence of free oxygen;  not aerobic.
  • anal - adj. a stage in psychosexual development when the child's interest is concentrated on the anal region; fixation at this stage is said to result in orderliness, meanness, stubbornness, compulsiveness, etc.;  of or related to the anus.
  • analgesic - adj. capable of relieving pain;  noun a medicine used to relieve pain.
  • analog - adj. of a circuit or device having an output that is proportional to the input;  noun something having the property of being analogous to something else.
  • analogous - adj. corresponding in function but not in evolutionary origin;  similar or equivalent in some respects though otherwise dissimilar.
  • analogy - noun drawing a comparison in order to show a similarity in some respect;  an inference that if things agree in some respects they probably agree in others;  the religious belief that between creature and creator no similarity can be found so great but that the dissimilarity is always greater; language can point in the right direction but any analogy between God and humans will always be inadequate.
  • analysis - noun an investigation of the component parts of a whole and their relations in making up the whole;  the abstract separation of a whole into its constituent parts in order to study the parts and their relations;  a branch of mathematics involving calculus and the theory of limits; sequences and series and integration and differentiation;  a form of literary criticism in which the structure of a piece of writing is analyzed;  the use of closed-class words instead of inflections: e.g., `the father of the bride' instead of `the bride's father';  a set of techniques for exploring underlying motives and a method of treating various mental disorders; based on the theories of Sigmund Freud.
  • analyze - verb subject to psychoanalytic treatment;  make a mathematical, chemical, or grammatical analysis of; break down into components or essential features;  consider in detail and subject to an analysis in order to discover essential features or meaning;  break down into components or essential features.
  • analyzed - adj. examined carefully and methodically; broken down for consideration of constituent parts.
  • anaphase - noun the stage of meiosis or mitosis when chromosomes move toward opposite ends of the nuclear spindle.
  • anaphylactic - adj. related to the hypersensitivity known as anaphylaxis.
  • anaphylaxis - noun hypersensitivity reaction to the ingestion or injection of a substance (a protein or drug) resulting from prior contact with a substance.
  • anastomosis - noun a natural or surgical joining of parts or branches of tubular structures so as to make or become continuous.
  • anatomic - adj. of or relating to the structure of the body;  of or relating to the branch of morphology that studies the structure of organisms.
  • anatomical - adj. of or relating to the structure of the body;  of or relating to the branch of morphology that studies the structure of organisms;  noun an expression that relates to anatomy.
  • anatomically - adv. with respect to anatomy.
  • anatomist - noun an expert in anatomy.
  • anatomy - noun a detailed analysis;  the branch of morphology that deals with the structure of animals;  alternative names for the body of a human being.
  • ancestor - noun someone from whom you are descended (but usually more remote than a grandparent).
  • ancestral - adj. inherited or inheritable by established rules (usually legal rules) of descent;  of or belonging to or inherited from an ancestor.
  • ancestry - noun inherited properties shared with others of your bloodline;  the descendants of one individual.
  • anchor - noun a mechanical device that prevents a vessel from moving;  a central cohesive source of support and stability;  a television reporter who coordinates a broadcast to which several correspondents contribute;  verb secure a vessel with an anchor;  fix firmly and stably.
  • anchorage - noun the act of anchoring;  place for vessels to anchor; a city in south central Alaska;  a fee for anchoring;  the condition of being secured to a base.
  • ancient - adj. very old;  belonging to times long past especially of the historical period before the fall of the Western Roman Empire;  nouna person who lived in ancient times;  a very old person.
  • androgen - noun male sex hormone that is produced in the testes and responsible for typical male sexual characteristics.
  • anecdotal - adj. having the character of an anecdote;  characterized by or given to telling anecdotes.
  • anemia - noun genus of terrestrial or lithophytic ferns having pinnatifid fronds; chiefly of tropical America;  a deficiency of red blood cells;  a lack of vitality.
  • anencephaly - noun a defect in brain development resulting in small or missing brain hemispheres.
  • anergy - noun inactivity and lack of energy;  reduction or lack of an immune response to a specific antigen.
  • anesthesia - noun loss of bodily sensation with or without loss of consciousness.
  • anesthesiologist - noun a specialist who administers an anesthetic to a patient before he is treated.
  • aneurism - noun a cardiovascular disease characterized by a saclike widening of an artery resulting from weakening of the artery wall.
  • aneurysm - noun a cardiovascular disease characterized by a saclike widening of an artery resulting from weakening of the artery wall.
  • angina - noun any disease of the throat or fauces marked by spasmodic attacks of intense suffocative pain;  a heart condition marked by paroxysms of chest pain due to reduced oxygen to the heart.
  • angiogenesis - noun the formation of new blood vessels.
  • angiogram - noun an X-ray representation of blood vessels made after the injection of a radiopaque substance.
  • angioplasty - noun an operation to repair a damaged blood vessel or unblock a coronary artery.
  • angiotensin - noun any of several vasoconstrictor substances (trade name Hypertensin) that cause narrowing of blood vessels.
  • angle - noun a member of a Germanic people who conquered England and merged with the Saxons and Jutes to become Anglo-Saxons;  the space between two lines or planes that intersect; the inclination of one line to another; measured in degrees or radians;  a biased way of looking at or presenting something;  verb fish with a hook;  move or proceed at an angle;  present with a bias;  seek indirectly;  to incline or bend from a vertical position.
  • angled - adj. forming or set at an angle.
  • ani - noun black tropical American cuckoo.
  • animal - adj. of the nature of or characteristic of or derived from an animal or animals;  marked by the appetites and passions of the body;  noun a living organism characterized by voluntary movement.
  • animated - adj. having life or vigor or spirit;  made to appear to move as living creatures do.
  • animation - noun the making of animated cartoons;  quality of being active or spirited or alive and vigorous;  the property of being able to survive and grow;  the condition of living or the state of being alive; general activity and motion;  the activity of giving vitality and vigour to something.
  • anion - noun a negatively charged ion.
  • ankle - noun a gliding joint between the distal ends of the tibia and fibula and the proximal end of the talus.
  • ankyloglossia - noun a congenital anomaly in which the mucous membrane under the tongue is too short limiting the mobility of the tongue.
  • annotation - noun the act of adding notes;  a comment or instruction (usually added).
  • annoying - adj. causing irritation or annoyance;  noun the act of troubling or annoying someone.
  • annually - adv. without missing a year;  by the year; every year (usually with reference to a sum of money paid or received).
  • annular - adj. shaped like a ring.
  • anomaly - noun (astronomy) position of a planet as defined by its angular distance from its perihelion (as observed from the sun);  a person who is unusual;  deviation from the normal or common order or form or rule.
  • anorexia - noun a prolonged disorder of eating due to loss of appetite.
  • anosmia - noun absence of the sense of smell (as by damage to olfactory nasal tissue or the olfactory nerve or by obstruction of the nasal passages).
  • another - adj. any of various alternatives; some other.
  • anoxia - noun severe hypoxia; absence of oxygen in inspired gases or in arterial blood or in the tissues.
  • ans - noun the part of the nervous system of vertebrates that controls involuntary actions of the smooth muscles and heart and glands.
  • answer - noun a nonverbal reaction;  the principle pleading by the defendant in response to plaintiff's complaint; in criminal law it consists of the defendant's plea of `guilty' or `not guilty' (or nolo contendere); in civil law it must contain denials of all allegations in the plaintiff's complaint that the defendant hopes to controvert and it can contain affirmative defenses or counterclaims;  a statement (either spoken or written) that is made in reply to a question or request or criticism or accusation;  the speech act of replying to a question;  a statement that solves a problem or explains how to solve the problem;  verb understand the meaning of;  give the correct answer or solution to;  react to a stimulus or command;  respond to a signal;  give a defence or refutation of (a charge) or in (an argument); reply or respond to;  be satisfactory for; meet the requirements of or serve the purpose of;  match or correspond;  be liable or accountable; be sufficient; be adequate, either in quality or quantity.
  • ant - noun social insect living in organized colonies; characteristically the males and fertile queen have wings during breeding season; wingless sterile females are the workers.
  • antagonism - noun (biochemistry) interference in or inhibition of the physiological action of a chemical substance by another having a similar structure;  an actively expressed feeling of dislike and hostility;  the relation between opposing principles or forces or factors;  a state of deep-seated ill-will.
  • antagonist - noun a drug that neutralizes or counteracts the effects of another drug;  a muscle that relaxes while another contracts; someone who offers opposition.
  • antagonistic - adj. incapable of harmonious association;  used especially of drugs or muscles that counteract or neutralize each other's effect;  arousing animosity or hostility;  characterized by antagonism or antipathy;  indicating opposition or resistance.
  • antecedent - adj. preceding in time or order;  noun the referent of an anaphor; a phrase or clause that is referred to by an anaphoric pronoun;  a preceding occurrence or cause or event;  anything that precedes something similar in time;  someone from whom you are descended (but usually more remote than a grandparent).
  • antecubital - adj. of or relating to the region of the arm in front of the elbow.
  • antepartum - adj. occurring or existing before birth.
  • anterior - adj. earlier in time;  of or near the head end or toward the front plane of the body;  noun a tooth situated at the front of the mouth.
  • anteriorly - adv. in an anterior direction.
  • anterograde - adj. of amnesia; affecting time immediately following trauma.
  • anthony - noun United States suffragist (1820-1906);  Roman general under Julius Caesar in the Gallic wars; repudiated his wife for the Egyptian queen Cleopatra; they were defeated by Octavian at Actium (83-30 BC).
  • anthropologist - noun a social scientist who specializes in anthropology.
  • anthropology - noun the social science that studies the origins and social relationships of human beings.
  • anti - adj. not in favor of (an action or proposal etc.);  noun a person who is opposed (to an action or policy or practice etc.).
  • anti-inflammatory - noun a medicine intended to reduce inflammation.
  • antibacterial - adj. destroying bacteria or inhibiting their growth; noun any drug that destroys bacteria or inhibits their growth.
  • antibiotic - adj. of or relating to antibiotic drugs;  noun a chemical substance derivable from a mold or bacterium that kills microorganisms and cures infections.
  • antibody - noun any of a large variety of proteins normally present in the body or produced in response to an antigen which it neutralizes, thus producing an immune response.
  • anticholinergic - adj. inhibiting or blocking the action of acetylcholine at a receptor site;  noun a substance that opposes or blocks the action of acetylcholine.
  • anticipation - noun something expected (as on the basis of a norm);  pleasurable expectation;  wishing with confidence of fulfillment;  the act of predicting (as by reasoning about the future).
  • anticoagulant - noun medicine that prevents or retards the clotting of blood.
  • antidiuretic - noun a drug that limits the formation of urine.
  • antidote - noun a remedy that stops or controls the effects of a poison.
  • antigen - noun any substance (as a toxin or enzyme) that stimulates an immune response in the body (especially the production of antibodies).
  • antigenic - adj. of or relating to antigens.
  • antihistamine - noun a medicine used to treat allergies and hypersensitive reactions and colds; works by counteracting the effects of histamine on a receptor site.
  • antimicrobial - adj. capable of destroying or inhibiting the growth of disease-causing microorganisms;  noun an agent (as heat or radiation or a chemical) that destroys microorganisms that might carry disease.
  • antioxidant - noun substance that inhibits oxidation or inhibits reactions promoted by oxygen or peroxides.
  • antiperspirant - noun an astringent substance applied to the skin to reduce perspiration.
  • antipsychotic - noun tranquilizer used to treat psychotic conditions when a calming effect is desired.
  • antiquity - noun an artifact surviving from the past;  the historic period preceding the Middle Ages in Europe;  extreme oldness.
  • antisocial - adj. hostile to or disruptive of normal standards of social behavior;  shunning contact with others.
  • antiviral - adj. inhibiting or stopping the growth and reproduction of viruses;  noun any drug that destroys viruses.
  • antrum - noun a natural cavity or hollow in a bone.
  • anulus - noun a toroidal shape.
  • anuria - noun inability to urinate.
  • anus - noun excretory opening at the end of the alimentary canal.
  • anvil - noun a heavy block of iron or steel on which hot metals are shaped by hammering;  the ossicle between the malleus and the stapes.
  • anxiety - noun a vague unpleasant emotion that is experienced in anticipation of some (usually ill-defined) misfortune;  a relatively permanent state of anxiety occurring in a variety of mental disorders.
  • anxious - adj. eagerly desirous;  causing or fraught with or showing anxiety.
  • any - adj. one or some or every or all without specification;  adv. to any degree or extent.
  • anything - noun a thing of any kind.
  • anyway - adv. used to indicate that a statement explains or supports a previous statement;  in any way whatsoever.
  • anywhere - adv. at or in or to any place.
  • aorta - noun the large trunk artery that carries blood from the left ventricle of the heart to branch arteries.
  • aortic - adj. of or relating to the aorta.
  • apart - adj. remote and separate physically or socially;  having characteristics not shared by others;  not living together as man and wife;  adv. not taken into account or excluded from consideration; into parts or pieces;  separated or at a distance in place or position or time;  one from the other;  away from another or others;  placed or kept separate and distinct as for a purpose.
  • aperture - noun an man-made opening; usually small;  a device that controls amount of light admitted;  a natural opening in something.
  • apex - noun the point on the celestial sphere toward which the sun and solar system appear to be moving relative to the fixed stars;  the highest point (of something).
  • aphasia - noun inability to use or understand language (spoken or written) because of a brain lesion.
  • apical - adj. situated at an apex.
  • apnea - noun transient cessation of respiration.
  • apocrine - adj. (of exocrine glands) producing a secretion in which part of the secreting cell is released with the secretion.
  • aponeurosis - noun any of the deeper and thicker fascia that attach muscles to bones; resemble flattened tendons.
  • apoptosis - noun a type of cell death in which the cell uses specialized cellular machinery to kill itself; a cell suicide mechanism that enables metazoans to control cell number and eliminate cells that threaten the animal's survival.
  • apparatus - noun equipment designed to serve a specific function; (anatomy) a group of body parts that work together to perform a given function.
  • apparent - adj. clearly revealed to the mind or the senses or judgment;  appearing as such but not necessarily so.
  • apparently - adv. from appearances alone;  unmistakably (`plain' is often used informally for `plainly').
  • appealing - adj. able to attract interest or draw favorable attention; expressing earnest entreaty;  (of characters in literature or drama) evoking empathic or sympathetic feelings.
  • appear - verb come into sight or view;  come into being or existence, or appear on the scene;  be issued or published;  appear as a character on stage or appear in a play, etc.;  seem to be true, probable, or apparent;  present oneself formally, as before a (judicial) authority;  give a certain impression or have a certain outward aspect.
  • appearance - noun the act of appearing in public view;  pretending that something is the case in order to make a good impression; formal attendance (in court or at a hearing) of a party in an action; outward or visible aspect of a person or thing;  a mental representation;  the event of coming into sight.
  • appearing - noun formal attendance (in court or at a hearing) of a party in an action.
  • appendage - noun a part that is joined to something larger;  a natural prolongation or projection from a part of an organism either animal or plant;  an external body part that projects from the body.
  • appendicitis - noun inflammation of the vermiform appendix.
  • appendicular - adj. relating to or consisting of an appendage or appendages; especially the limbs.
  • appendix - noun a vestigial process that extends from the lower end of the cecum and that resembles a small pouch;  supplementary material that is collected and appended at the back of a book.
  • appetite - noun a feeling of craving something.
  • appetizing - adj. appealing to or stimulating the appetite especially in appearance or aroma.
  • apple - noun fruit with red or yellow or green skin and sweet to tart crisp whitish flesh;  native Eurasian tree widely cultivated in many varieties for its firm rounded edible fruits.
  • appliance - noun durable goods for home or office use;  a device or control that is very useful for a particular job.
  • applicable - adj. readily applicable or practical;  capable of being applied; having relevance.
  • application - noun a diligent effort;  the work of applying something; the act of bringing something to bear; using it for a particular purpose;  a verbal or written request for assistance or employment or admission to a school;  a program that gives a computer instructions that provide the user with tools to accomplish a task;  liquid preparation having a soothing or antiseptic or medicinal action when applied to the skin.
  • applicator - noun a device for applying a substance.
  • applied - adj. concerned with concrete problems or data rather than with fundamental principles; opposed to theoretical;  put into practice or put to use;  that are used.
  • apply - verb ask (for something);  refer (a word or name) to a person or thing;  apply oneself to;  be pertinent or relevant or applicable;  put into service; make work or employ (something) for a particular purpose or for its inherent or natural purpose;  apply to a surface; give or convey physically;  ensure observance of laws and rules; avail oneself to;  be applicable to; as to an analysis.
  • apposition - noun (biology) growth in the thickness of a cell wall by the deposit of successive layers of material;  a grammatical relation between a word and a noun phrase that follows;  the act of positioning close together (or side by side).
  • appositional - adj. relating to or being in apposition.
  • appreciable - adj. enough to be estimated or measured.
  • appreciably - adv. to a noticeable degree.
  • appreciate - verb increase the value of;  gain in value;  be fully aware of; realize fully;  recognize with gratitude; be grateful for;  hold dear.
  • appreciated - adj. fully understood or grasped;  giving pleasure or satisfaction.
  • appreciation - noun an increase in price or value;  understanding of the nature or meaning or quality or magnitude of something;  an expression of gratitude;  a favorable judgment;  delicate discrimination (especially of aesthetic values).
  • approach - noun the act of drawing spatially closer to something;  a relatively short golf shot intended to put the ball onto the putting green;  ideas or actions intended to deal with a problem or situation; a close approximation;  the temporal property of becoming nearer in time;  the event of one object coming closer to another;  a way of entering or leaving;  a tentative suggestion designed to elicit the reactions of others;  the final path followed by an aircraft as it is landing;  verb make advances to someone, usually with a proposal or suggestion;  come near in time;  move towards;  begin to deal with; come near or verge on, resemble, come nearer in quality, or character.
  • approaching - adj. of the relatively near future;  noun the act of drawing spatially closer to something;  the temporal property of becoming nearer in time;  the event of one object coming closer to another.
  • appropriate - adj. suitable for a particular person or place or condition etc;  suitable and fitting;  meant or adapted for an occasion or use;  being of striking appropriateness and pertinence;  appropriate for achieving a particular end; implies a lack of concern for fairness; verb take possession of by force, as after an invasion;  give or assign a resource to a particular person or cause.
  • appropriated - adj. taken without permission or consent especially by public authority.
  • appropriately - adv. in an appropriate manner.
  • approval - noun a message expressing a favorable opinion;  a feeling of liking something or someone good;  acceptance as satisfactory;  the formal act of approving.
  • approve - verb judge to be right or commendable; think well of;  give sanction to.
  • approved - adj. generally or especially officially judged acceptable or satisfactory;  established by authority; given authoritative approval.
  • approximate - adj. located close together;  very close in resemblance;  not quite exact or correct;  verb be close or similar; judge tentatively or form an estimate of (quantities or time).
  • approximately - adv. (of quantities) imprecise but fairly close to correct.
  • approximation - noun the act of bringing near or bringing together especially the cut edges of tissue;  the quality of coming near to identity (especially close in quantity);  an imprecise or incomplete account;  an approximate calculation of quantity or degree or worth.
  • apr - noun the month following March and preceding May.
  • aquarius - noun the eleventh sign of the zodiac; the sun is in this sign from about January 20 to February 18;  a zodiacal constellation in the southern hemisphere; between Capricornus and Pisces; (astrology) a person who is born while the sun is in Aquarius.
  • aqueduct - noun a conduit that resembles a bridge but carries water over a valley.
  • aqueous - adj. produced by the action of water;  similar to or containing or dissolved in water.
  • arachnoid - adj. relating to or resembling a member of the class Arachnida;  noun the middle of the 3 meninges;  air-breathing arthropods characterized by simple eyes and four pairs of legs.
  • arapahoe - noun the Algonquian language spoken by the Arapaho; a member of a tribe of Plains Indians formerly inhabiting eastern Colorado and Wyoming (now living in Oklahoma and Wyoming).
  • arbitrary - adj. based on or subject to individual discretion or preference or sometimes impulse or caprice.
  • arc - noun a continuous portion of a circle;  electrical conduction through a gas in an applied electric field;  something curved in shape;  verb form an arch or curve.
  • arch - adj. expert in skulduggery;  (used of behavior or attitude) characteristic of those who treat others with condescension;  noun(architecture) a masonry construction (usually curved) for spanning an opening and supporting the weight above it;  a passageway under a curved masonry construction;  a curved bony structure supporting or enclosing organs (especially the inner sides of the feet);  a curved shape in the vertical plane that spans an opening;  verb form an arch or curve.
  • archaeological - adj. related to or dealing with or devoted to archaeology.
  • arched - adj. constructed with or in the form of an arch or arches; forming or resembling an arch.
  • arching - adj. forming or resembling an arch.
  • architecture - noun the profession of designing buildings and environments with consideration for their esthetic effect;  an architectural product or work;  the discipline dealing with the principles of design and construction and ornamentation of fine buildings;  (computer science) the structure and organization of a computer's hardware or system software.
  • arcuate - adj. forming or resembling an arch.
  • are - noun a unit of surface area equal to 100 square meters.
  • area - noun a part of a structure having some specific characteristic or function;  the extent of a 2-dimensional surface enclosed within a boundary;  a part of an animal that has a special function or is supplied by a given artery or nerve;  a subject of study;  a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography);  a particular environment or walk of life.
  • areola - noun small circular area such as that around the human nipple or an inflamed area around a pimple or insect bite;  small space in a tissue or body part such as the area between veins on a leaf or an insect's wing.
  • areolar - adj. relating to or like or divided into areolae.
  • argon - noun a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1% of the earth's atmosphere.
  • arguably - adv. as can be shown by argument.
  • arise - verb result or issue;  rise to one's feet;  originate or come into being;  get up and out of bed;  move upward;  take part in a rebellion; renounce a former allegiance;  come into existence; take on form or shape.
  • arizona - noun glossy snake;  a state in southwestern United States; site of the Grand Canyon.
  • arkansas - noun a state in south central United States; one of the Confederate states during the American Civil War;  a river that rises in the Rocky Mountains in Colorado and flows southeast through Kansas and Oklahoma and through Arkansas to become a tributary of the Mississippi River.
  • arm - noun the part of an armchair or sofa that supports the elbow and forearm of a seated person;  any projection that is thought to resemble a human arm;  a human limb; technically the part of the superior limb between the shoulder and the elbow but commonly used to refer to the whole superior limb;  the part of a garment that is attached at the armhole and that provides a cloth covering for the arm;  any instrument or instrumentality used in fighting or hunting;  an administrative division of some larger or more complex organization; verb prepare oneself for a military confrontation;  supply with arms.
  • armor - noun tough more-or-less rigid protective covering of an animal or plant;  protective covering made of metal and used in combat;  a military unit consisting of armored fighting vehicles;  verbequip with armor.
  • armpit - noun the hollow under the arm where it is joined to the shoulder.
  • arms - noun the official symbols of a family, state, etc.;  weapons considered collectively.
  • armstrong - noun United States jazz trumpeter and bandleader (1900-1971);  United States astronaut; the first man to set foot on the moon (July 20, 1969) (1930-).
  • army - noun a large number of people united for some specific purpose;  a permanent organization of the military land forces of a nation or state;  the army of the United States of America; the agency that organizes and trains soldiers for land warfare.
  • arnold - noun United States general and traitor in the American Revolution; in 1780 his plan to surrender West Point to the British was foiled (1741-1801);  English poet and literary critic (1822-1888).
  • aromatic - adj. having a strong pleasant odor;  (chemistry) of or relating to or containing one or more benzene rings.
  • around - adv. in circumference;  by a circular or circuitous route;  in a circle or circular motion;  to a particular destination either specified or understood;  (of quantities) imprecise but fairly close to correct;  in the area or vicinity;  from beginning to end; throughout;  all around or on all sides;  in or to a reversed position or direction;  to or among many different places or in no particular direction.
  • arousal - noun the act of arousing;  awakening from sleep;  a state of heightened physiological activity;  mutual sexual fondling prior to sexual intercourse.
  • aroused - adj. (of persons) excessively affected by emotion; aroused to action;  feeling great sexual desire;  brought to a state of great tension;  emotionally aroused;  keenly excited (especially sexually) or indicating excitement.
  • arrange - verb arrange thoughts, ideas, temporal events;  make arrangements for;  put into a proper or systematic order;  adapt for performance in a different way;  arrange attractively;  plan, organize, and carry out (an event);  set (printed matter) into a specific format.
  • arranged - adj. deliberately arranged for effect;  planned in advance; disposed or placed in a particular kind of order.
  • arrangement - noun the act of arranging and adapting a piece of music;  an organized structure for arranging or classifying;  an orderly grouping (of things or persons) considered as a unit; the result of arranging;  the spatial property of the way in which something is placed;  the thing arranged or agreed to;  a piece of music that has been adapted for performance by a particular set of voices or instruments.
  • array - noun an arrangement of aerials spaced to give desired directional characteristics;  especially fine or decorative clothing;  an impressive display;  an orderly arrangement;  verb align oneself with a group or a way of thinking;  lay out orderly or logically in a line or as if in a line.
  • arrayed - adj. in ceremonial attire and paraphernalia.
  • arrest - noun the state of inactivity following an interruption;  the act of apprehending (especially apprehending a criminal);  verb hold back, as of a danger or an enemy; check the expansion or influence of;  take into custody;  attract and fix;  cause to stop.
  • arrested - adj. having development checked or reversed.
  • arrhythmia - noun an abnormal rate of muscle contractions in the heart.
  • arrival - noun accomplishment of an objective;  the act of arriving at a certain place;  someone who arrives (or has arrived).
  • arrive - verb reach a destination; arrive by movement or progress; succeed in a big way; get to the top.
  • arrow - noun a projectile with a straight thin shaft and an arrowhead on one end and stabilizing vanes on the other; intended to be shot from a bow;  a mark to indicate a direction or relation.
  • arsenic - noun a very poisonous metallic element that has three allotropic forms; arsenic and arsenic compounds are used as herbicides and insecticides and various alloys; found in arsenopyrite and orpiment and realgar;  a white powdered poisonous trioxide of arsenic; used in manufacturing glass and as a pesticide (rat poison) and weed killer.
  • art - noun the creation of beautiful or significant things;  the products of human creativity; works of art collectively;  a superior skill that you can learn by study and practice and observation;  photographs or other visual representations in a printed publication.
  • arterial - adj. of or involving or contained in the arteries.
  • arteriolar - adj. of or relating to or involving arterioles.
  • arteriole - noun one of the small thin-walled arteries that end in capillaries.
  • arteriosclerosis - noun sclerosis of the arterial walls.
  • arteriovenous - adj. connecting an artery to a vein.
  • artery - noun a major thoroughfare that bears important traffic;  a blood vessel that carries blood from the heart to the body.
  • arthritis - noun inflammation of a joint or joints.
  • arthroplasty - noun surgical reconstruction or replacement of a malformed or degenerated joint.
  • arthroscope - noun a type of endoscope that is inserted into a joint for visual examination.
  • article - noun one of a class of artifacts;  nonfictional prose forming an independent part of a publication;  (grammar) a determiner that may indicate the specificity of reference of a noun phrase;  a separate section of a legal document (as a statute or contract or will);  verb bind by a contract; especially for a training period.
  • articular - adj. relating to or affecting the joints of the body.
  • articulate - adj. expressing yourself easily or characterized by clear expressive language;  consisting of segments held together by joints; verb express or state clearly;  speak, pronounce, or utter in a certain way;  put into words or an expression;  provide with a joint.
  • articulated - adj. pronounced distinctly and clearly;  consisting of segments held together by joints.
  • articulation - noun the act of joining things in such a way that motion is possible;  expressing in coherent verbal form;  the aspect of pronunciation that involves bringing articulatory organs together so as to shape the sounds of speech;  the shape or manner in which things come together and a connection is made;  (anatomy) the point of connection between two bones or elements of a skeleton (especially if it allows motion).
  • artifact - noun a man-made object taken as a whole.
  • artificial - adj. artificially formal;  contrived by art rather than nature; not arising from natural growth or characterized by vital processes.
  • artificially - adv. not according to nature; not by natural means.
  • artist - noun a person whose creative work shows sensitivity and imagination.
  • arts - noun studies intended to provide general knowledge and intellectual skills (rather than occupational or professional skills).
  • artwork - noun photographs or other visual representations in a printed publication.
  • arytenoid - noun either of two small cartilages at the back of the larynx to which the vocal folds are attached.
  • as - adv. to the same degree (often followed by `as');  noun a United States territory on the eastern part of the island of Samoa;  a very poisonous metallic element that has three allotropic forms; arsenic and arsenic compounds are used as herbicides and insecticides and various alloys; found in arsenopyrite and orpiment and realgar.
  • ascend - verb travel up, "We ascended the mountain";  slope upwards;  go along towards (a river's) source;  become king or queen;  go back in order of genealogical succession;  come up, of celestial bodies.
  • ascending - adj. moving or going or growing upward;  noun the act of changing location in an upward direction.
  • ascent - noun an upward slope or grade (as in a road);  the act of changing location in an upward direction;  a movement upward.
  • ashen - adj. anemic looking from illness or emotion;  made of wood of the ash tree.
  • asia - noun the nations of the Asian continent collectively;  the largest continent with 60% of the earth's population; it is joined to Europe on the west to form Eurasia; it is the site of some of the world's earliest civilizations.
  • aside - adv. in reserve; not for immediate use;  on or to one side;  out of the way (especially away from one's thoughts);  placed or kept separate and distinct as for a purpose;  not taken into account or excluded from consideration;  in a different direction;  noun a line spoken by an actor to the audience but not intended for others on the stage;  a message that departs from the main subject.
  • ask - verb make a request or demand for something to somebody; consider obligatory; request and expect;  inquire about;  direct or put; seek an answer to;  address a question to and expect an answer from;  require or ask for as a price or condition;  require as useful, just, or proper.
  • asking - adj. relating to the use of or having the nature of an interrogation;  noun the verbal act of requesting.
  • asleep - adj. dead;  in a state of sleep;  lacking sensation;  adv. into a sleeping state;  in the sleep of death.
  • asparagus - noun edible young shoots of the asparagus plant;  plant whose succulent young shoots are cooked and eaten as a vegetable.
  • aspartame - noun an artificial sweetener made from aspartic acid; used as a calorie-free sweetener.
  • aspect - noun a characteristic to be considered;  a distinct feature or element in a problem;  the beginning or duration or completion or repetition of the action of a verb;  the feelings expressed on a person's face;  the visual percept of a region.
  • aspen - noun any of several trees of the genus Populus having leaves on flattened stalks so that they flutter in the lightest wind.
  • aspergillus - noun genus of common molds causing food spoilage and some pathogenic to plants and animals.
  • aspirate - noun a consonant pronounced with aspiration;  verb suck in (air);  pronounce with aspiration; of stop sounds;  remove as if by suction.
  • aspiration - noun a will to succeed;  a manner of articulation involving an audible release of breath;  the act of inhaling; the drawing in of air (or other gases) as in breathing;  a cherished desire.
  • aspirin - noun the acetylated derivative of salicylic acid; used as an analgesic anti-inflammatory drug (trade names Bayer and Empirin) usually taken in tablet form; used as an antipyretic; slows clotting of the blood by poisoning platelets.
  • assemble - verb create by putting components or members together;  get people together;  collect in one place.
  • assembled - adj. formed by fitting or joining components together; brought together into a group or crowd.
  • assembling - noun the act of gathering something together.
  • assembly - noun the social act of assembling;  a group of machine parts that fit together to form a self-contained unit;  a group of persons gathered together for a common purpose;  the act of constructing something (as a piece of machinery);  a public facility to meet for open discussion.
  • asserting - adj. relating to the use of or having the nature of a declaration.
  • assess - verb estimate the value of (property) for taxation;  charge (a person or a property) with a payment, such as a tax or a fine;  place a value on; judge the worth of something;  set or determine the amount of (a payment such as a fine).
  • assessment - noun the market value set on assets;  an amount determined as payable;  the act of judging or assessing a person or situation or event;  the classification of someone or something with respect to its worth.
  • assign - verb select something or someone for a specific purpose; decide as to where something belongs in a scheme;  transfer one's right to;  give out or allot;  attribute or credit to;  attribute or give;  make undue claims to having;  give an assignment to (a person) to a post, or assign a task to (a person).
  • assigned - adj. appointed to a post or duty.
  • assigning - noun the act of distributing something to designated places or persons.
  • assimilation - noun in the theories of Jean Piaget: the application of a general schema to a particular instance;  a linguistic process by which a sound becomes similar to an adjacent sound;  the process of absorbing nutrients into the body after digestion;  the social process of absorbing one cultural group into harmony with another;  the state of being assimilated; people of different backgrounds come to see themselves as part of a larger national family;  the process of assimilating new ideas into an existing cognitive structure.
  • assist - noun (sports) the act of enabling another player to make a good play;  the activity of contributing to the fulfillment of a need or furtherance of an effort or purpose;  verb act as an assistant in a subordinate or supportive function;  work for or be a servant to;  give help or assistance; be of service.
  • assistance - noun the activity of contributing to the fulfillment of a need or furtherance of an effort or purpose;  a resource.
  • assisted - adj. having help; often used as a combining form.
  • associate - adj. having partial rights and privileges or subordinate status;  noun any event that usually accompanies or is closely connected with another;  a person who joins with others in some activity;  a degree granted by a two-year college on successful completion of the undergraduates course of studies;  a person who is frequently in the company of another;  verb make a logical or causal connection;  bring or come into association or action;  keep company with; hang out with.
  • associated - adj. related to or accompanying;  joined in some kind of relationship (as a colleague or ally or companion etc.).
  • association - noun the act of consorting with or joining with others; the process of bringing ideas or events together in memory or imagination;  (ecology) a group of organisms (plants and animals) that live together in a certain geographical region and constitute a community with a few dominant species;  a formal organization of people or groups of people;  (chemistry) any process of combination (especially in solution) that depends on relatively weak chemical bonding;  a relation resulting from interaction or dependence;  the state of being connected together as in memory or imagination;  a social or business relationship.
  • associative - adj. characterized by or causing or resulting from the process of bringing ideas or events together in memory or imagination.
  • assorted - adj. consisting of a haphazard assortment of different kinds (even to the point of incongruity);  of many different kinds purposefully arranged but lacking any uniformity.
  • assortment - noun a collection containing a variety of sorts of things;  the act of distributing things into classes or categories of the same type.
  • assume - verb take on a certain form, attribute, or aspect;  take to be the case or to be true; accept without verification or proof;  take up someone's soul into heaven;  occupy or take on;  seize and take control without authority and possibly with force; take as one's right or possession;  take on titles, offices, duties, responsibilities;  put clothing on one's body;  make a pretence of;  take on as one's own the expenses or debts of another person.
  • assumed - adj. accepted as real or true without proof;  adopted in order to deceive;  taken as your right without justification.
  • assumption - noun the act of taking possession of or power over something;  the act of assuming or taking for granted;  a hypothesis that is taken for granted;  (Christianity) the taking up of the body and soul of the Virgin Mary when her earthly life had ended;  celebration in the Roman Catholic Church of the Virgin Mary's being taken up into heaven when her earthly life ended; corresponds to the Dormition in the Eastern Orthodox church;  audacious (even arrogant) behavior that you have no right to;  a statement that is assumed to be true and from which a conclusion can be drawn.
  • assure - verb assure somebody of the truth of something with the intention of giving the listener confidence;  inform positively and with certainty and confidence;  be careful or certain to do something; make certain of something;  make a promise or commitment;  make certain of;  cause to feel sure; give reassurance to.
  • asthma - noun respiratory disorder characterized by wheezing; usually of allergic origin.
  • astrocyte - noun comparatively large neuroglial cell.
  • asymmetrical - adj. irregular in shape or outline;  characterized by asymmetry in the spatial arrangement or placement of parts or components.
  • asymmetry - noun (mathematics) a lack of symmetry.
  • asymptomatic - adj. having no symptoms of illness or disease.
  • at - noun 100 at equal 1 kip in Laos;  a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium.
  • at home - adv. at, to, or toward the place where you reside;  on the home team's field;  noun a reception held in your own home.
  • ataxia - noun inability to coordinate voluntary muscle movements; unsteady movements and staggering gait.
  • ate - noun goddess of criminal rashness and its punishment.
  • atherosclerosis - noun a stage of arteriosclerosis involving fatty deposits (atheromas) inside the arterial walls.
  • atherosclerotic - adj. of or relating to atherosclerosis.
  • athlete - noun a person trained to compete in sports.
  • athletic - adj. having a sturdy and well proportioned body;  relating to or befitting athletics or athletes;  vigorously active.
  • atlanta - noun a siege in which Federal troops under Sherman cut off the railroads supplying the city and then burned it; 1864;  state capital and largest city of Georgia; chief commercial center of the southeastern United States; was plundered and burned by Sherman's army during the American Civil War.
  • atlantic - adj. relating to or bordering the Atlantic Ocean;  noun the 2nd largest ocean; separates North and South America on the west from Europe and Africa on the east.
  • atlas - noun a figure of a man used as a supporting column;  the 1st cervical vertebra;  a collection of maps in book form;  (Greek mythology) a Titan who was forced by Zeus to bear the sky on his shoulders.
  • atm - noun an unattended machine (outside some banks) that dispenses money when a personal coded card is used;  a means of digital communications that is capable of very high speeds; suitable for transmission of images or voice or video as well as data;  a unit of pressure: the pressure that will support a column of mercury 760 mm high at sea level and 0 degrees centigrade.
  • atmosphere - noun the mass of air surrounding the Earth;  the envelope of gases surrounding any celestial body;  the weather or climate at some place;  a particular environment or surrounding influence;  a distinctive but intangible quality surrounding a person or thing;  a unit of pressure: the pressure that will support a column of mercury 760 mm high at sea level and 0 degrees centigrade.
  • atmospheric - adj. relating to or located in the atmosphere.
  • atom - noun (nontechnical usage) a tiny piece of anything;  (physics and chemistry) the smallest component of an element having the chemical properties of the element.
  • atomic - adj. immeasurably small;  of or relating to or comprising atoms;  (weapons) deriving destructive energy from the release of atomic energy.
  • atop - adv. on, to, or at the top.
  • atp - noun a nucleotide derived from adenosine that occurs in muscle tissue; the major source of energy for cellular reactions.
  • atresia - noun an abnormal condition in which a normal opening or tube in the body (as the urethra) is closed or absent.
  • atrial - adj. of or relating to a cavity or chamber in the body (especially one of the upper chambers of the heart).
  • atrioventricular - adj. relating to or affecting the atria and ventricles of the heart.
  • atrium - noun the central area in a building; open to the sky;  any chamber that is connected to other chambers or passageways (especially one of the two upper chambers of the heart).
  • atropa - noun belladonna.
  • atrophic - adj. relating to or characterized by atrophy.
  • atrophied - adj. (of an organ or body part) diminished in size or strength as a result of disease or injury or lack of use.
  • atrophy - noun any weakening or degeneration (especially through lack of use);  a decrease in size of an organ caused by disease or disuse;  verb undergo atrophy.
  • atropine - noun a poisonous crystalline alkaloid extracted from the nightshade family; used as an antispasmodic and to dilate the eye pupil; also administered in large amounts as an antidote for organophosphate nerve agents or organophosphate insecticides.
  • attach - verb be attached; be in contact with;  become attached; cause to be attached;  take temporary possession of as a security, by legal authority;  create social or emotional ties.
  • attached - adj. associated in an exclusive sexual relationship;  used of buildings joined by common sidewalls;  fastened together; permanently attached to a substrate; not free to move about;  being joined in close association.
  • attachment - noun the act of attaching or affixing something;  faithful support for a religion or cause or political party;  a supplementary part or accessory;  a connection that fastens things together;  a writ authorizing the seizure of property that may be needed for the payment of a judgment in a judicial proceeding;  a feeling of affection for a person or an institution;  the act of fastening things together.
  • attack - noun a decisive manner of beginning a musical tone or phrase;  an offensive move in a sport or game;  the act of attacking; (military) an offensive against an enemy (using weapons);  strong criticism;  the onset of a corrosive or destructive process (as by a chemical agent);  a sudden occurrence of an uncontrollable condition;  ideas or actions intended to deal with a problem or situation;  intense adverse criticism;  verb begin to injure;  set to work upon; turn one's energies vigorously to a task;  attack in speech or writing;  take the initiative and go on the offensive;  launch an attack or assault on; begin hostilities or start warfare with;  attack someone physically or emotionally.
  • attacking - adj. disposed to attack.
  • attained - adj. achieved or reached.
  • attempt - noun earnest and conscientious activity intended to do or accomplish something;  the act of attacking;  verb enter upon an activity or enterprise;  make an effort or attempt.
  • attempted - adj. tried unsuccessfully.
  • attend - verb give heed (to);  take charge of or deal with;  be present at (meetings, church services, university), etc.;  to accompany as a circumstance or follow as a result;  work for or be a servant to.
  • attending - adj. being present (at meeting or event etc.);  serving attendance on someone;  noun the act of being present (at a meeting or event etc.);  the process whereby a person concentrates on some features of the environment to the (relative) exclusion of others.
  • attention - noun a courteous act indicating affection;  a motionless erect stance with arms at the sides and feet together; assumed by military personnel during drill or review;  the faculty or power of mental concentration;  the process whereby a person concentrates on some features of the environment to the (relative) exclusion of others;  a general interest that leads people to want to know more; the work of providing treatment for or attending to someone or something.
  • attenuated - adj. of an electrical signal; reduced in amplitude with little or no distortion;  reduced in strength.
  • attract - verb exert a force on (a body) causing it to approach or prevent it from moving away;  direct toward itself or oneself by means of some psychological power or physical attributes;  be attractive to.
  • attraction - noun the quality of arousing interest; being attractive or something that attracts;  a characteristic that provides pleasure and attracts;  an entertainment that is offered to the public;  the force by which one object attracts another;  an entertainer who attracts large audiences.
  • attractive - adj. pleasing to the eye or mind especially through beauty or charm;  having the properties of a magnet; the ability to draw or pull;  having power to arouse interest.
  • attributable - adj. capable of being attributed.
  • attribution - noun assigning to a cause or source;  assigning some quality or character to a person or thing.
  • atypical - adj. deviating from normal expectations; somewhat odd, strange, or abnormal;  not representative of a group, class, or type.
  • audible - adj. heard or perceptible by the ear;  noun a football play is changed orally after both teams have assumed their positions at the line of scrimmage.
  • audio - noun the sound elements of television;  an audible acoustic wave frequency;  the audible part of a transmitted signal.
  • audition - noun a test of the suitability of a performer;  the ability to hear; the auditory faculty;  verb perform in order to get a role.
  • auditory - adj. of or relating to the process of hearing.
  • aug - noun the month following July and preceding September.
  • augment - verb enlarge or increase;  grow or intensify.
  • augusta - noun a city in eastern Georgia north-northwest of Savannah; noted for golf tournaments;  the capital of the state of Maine.
  • auricle - noun the externally visible cartilaginous structure of the external ear;  a small conical pouch projecting from the upper anterior part of each atrium of the heart.
  • auricular - adj. pertaining to an auricle of the heart;  relating to or perceived by or shaped like the organ of hearing;  of or relating to near the ear.
  • aurora - noun (Roman mythology) goddess of the dawn; counterpart of Greek Eos;  an atmospheric phenomenon consisting of bands of light caused by charged solar particles following the earth's magnetic lines of force;  the first light of day.
  • auscultation - noun listening to sounds within the body (usually with a stethoscope).
  • austrian - adj. of or relating to Austria or its people or culture;  nouna native or inhabitant of Austria.
  • author - noun someone who originates or causes or initiates something;  writes (books or stories or articles or the like) professionally (for pay);  verb be the author of.
  • authorities - noun the organization that is the governing authority of a political unit.
  • autism - noun (psychiatry) an abnormal absorption with the self; marked by communication disorders and short attention span and inability to treat others as people.
  • auto - noun a motor vehicle with four wheels; usually propelled by an internal combustion engine.
  • autobiographical - adj. relating to or in the style of an autobiography;  of or relating to or characteristic of an autobiographer.
  • autoimmune - adj. of or relating to the immune response of the body against substance normally present in the body.
  • autoimmunity - noun production of antibodies against the tissues of your own body; produces autoimmune disease or hypersensitivity reactions.
  • autologous - adj. derived from organisms of the selfsame individual.
  • autolysis - noun lysis of plant or animal tissue by an internal process.
  • automated - adj. operated by automation.
  • automatic - adj. operating with minimal human intervention; independent of external control;  like the unthinking functioning of a machine;  without volition or conscious control;  noun a pistol that will keep firing until the ammunition is gone or the trigger is released; light machine gun.
  • automatically - adv. in a reflex manner;  in a mechanical manner; by a mechanism.
  • automobile - noun a motor vehicle with four wheels; usually propelled by an internal combustion engine;  verb travel in an automobile.
  • autonomic - adj. relating to or controlled by the autonomic nervous system.
  • autopilot - noun a navigational device that automatically keeps ships or planes or spacecraft on a steady course;  a cognitive state in which you act without self-awareness.
  • autopsy - noun an examination and dissection of a dead body to determine cause of death or the changes produced by disease;  verbperform an autopsy on a dead body; do a post-mortem.
  • autoregulation - noun (physiology) processes that maintain a generally constant physiological state in a cell or organism.
  • autosomal - adj. of or relating to an autosome.
  • autosome - noun any chromosome that is not a sex chromosome; appear in pairs in body cells but as single chromosomes in spermatozoa.
  • auxiliary - adj. functioning in a subsidiary or supporting capacity; furnishing added support;  noun someone who acts as assistant.
  • av - noun the eleventh month of the civil year; the fifth month of the ecclesiastical year in the Jewish calendar (in July and August).
  • availability - noun the quality of being at hand when needed.
  • available - adj. obtainable or accessible and ready for use or service;  convenient for use or disposal;  not busy; not otherwise committed.
  • avascular - adj. without blood vessels.
  • average - adj. lacking special distinction, rank, or status; commonly encountered;  around the middle of a scale of evaluation of physical measures;  approximating the statistical norm or average or expected value;  lacking exceptional quality or ability;  relating to or constituting the middle value of an ordered set of values (or the average of the middle two in a set with an even number of values); relating to or constituting the most frequent value in a distribution; noun a statistic describing the location of a distribution;  verbcompute the average of;  achieve or reach on average;  amount to or come to an average, without loss or gain.
  • averting - noun the act of preventing something from occurring;  the act of turning yourself (or your gaze) away.
  • avogadro - noun Italian physicist noted for his work on gases; proposed what has come to be called Avogadro's law (1776-1856).
  • avoid - verb stay clear from; keep away from; keep out of the way of someone or something;  refrain from doing something;  refrain from certain foods or beverages;  prevent the occurrence of; prevent from happening;  declare invalid.
  • aware - adj. (sometimes followed by `of') having or showing knowledge or understanding or realization or perception;  aware or knowing;  bearing in mind; attentive to.
  • awareness - noun having knowledge of;  state of elementary or undifferentiated consciousness.
  • away - adj. (of a baseball pitch) on the far side of home plate from the batter;  used of an opponent's ground;  not present; having left; adv. from a particular thing or place or position (`forth' is obsolete); from one's possession;  out of existence;  indicating continuing action; continuously or steadily;  in a different direction;  in or into a proper place (especially for storage or safekeeping);  so as to be removed or gotten rid of;  freely or at will;  in reserve; not for immediate use;  out of the way (especially away from one's thoughts);  at a distance in space or time.
  • awkward - adj. not at ease socially; unsure and constrained in manner;  causing inconvenience;  hard to deal with; especially causing pain or embarrassment;  not elegant or graceful in expression;  lacking grace or skill in manner or movement or performance;  difficult to handle or manage especially because of shape.
  • awry - adj. not functioning properly;  turned or twisted toward one side;  adv. away from the correct or expected course;  turned or twisted to one side.
  • axial - adj. situated on or along or in the direction of an axis;  of or relating to or resembling an axis of rotation;  relating to or attached to the axis.
  • axillary - adj. of or relating to the armpit;  of or relating to the axil.
  • axis - noun the center around which something rotates;  the 2nd cervical vertebra; serves as a pivot for turning the head;  a straight line through a body or figure that satisfies certain conditions;  in World War II the alliance of Germany and Italy in 1936 which later included Japan and other nations;  the main stem or central part about which plant organs or plant parts such as branches are arranged;  a group of countries in special alliance.
  • axolemma - noun outer membrane covering an axon.
  • axon - noun long nerve fiber that conducts away from the cell body of the neuron.
  • axonal - adj. of or relating to or resembling an axon.
  • az - noun a state in southwestern United States; site of the Grand Canyon;  the azimuth of a celestial body is the angle between the vertical plane containing it and the plane of the meridian.
  • azygos - adj. occurring singly; not one of a pair.
  • azygous - adj. occurring singly; not one of a pair.
  • b - noun the blood group whose red cells carry the B antigen;  the 2nd letter of the Roman alphabet;  aerobic rod-shaped spore-producing bacterium; often occurring in chainlike formations; found primarily in soil;  (physics) a unit of nuclear cross section; the effective circular area that one particle presents to another as a target for an encounter;  a logarithmic unit of sound intensity equal to 10 decibels;  a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder;  originally thought to be a single vitamin but now separated into several B vitamins.
  • babinski - noun extension upward of the toes when the sole of the foot is stroked firmly on the outer side from the heel to the front; normal in infants under the age of two years but a sign of brain or spinal cord injury in older persons.
  • baby - noun a project of personal concern to someone;  a very young mammal;  (slang) sometimes used as a term of address for attractive young women;  the youngest member of a group (not necessarily young);  a very young child (birth to 1 year) who has not yet begun to walk or talk;  an immature childish person;  verb treat with excessive indulgence.
  • baby boom - noun the larger than expected generation in United States born shortly after World War II.
  • bachelor - noun a man who has never been married;  a knight of the lowest order; could display only a pennon;  verb lead a bachelor's existence.
  • back - adj. located at or near the back of an animal;  related to or located at the back;  of an earlier date;  adv. in or to or toward a past time;  at or to or toward the back or rear;  in repayment or retaliation; in or to or toward a former location;  in or to or toward an original condition;  in answer;  noun the position of a player on a football team who is stationed behind the line of scrimmage;  a support that you can lean against while sitting;  the part of a garment that covers the back of your body;  the posterior part of a human (or animal) body from the neck to the end of the spine;  the part of something that is furthest from the normal viewer;  (football) a person who plays in the backfield;  the protective covering on the front, back, and spine of a book;  the side that goes last or is not normally seen;  the series of vertebrae forming the axis of the skeleton and protecting the spinal cord;  verb strengthen by providing with a back or backing;  establish as valid or genuine;  shift to a counterclockwise direction;  travel backward;  cause to travel backward;  support financial backing for; be behind; approve of;  be in back of;  place a bet on;  give support or one's approval to.
  • back-to-back - adj. one after the other.
  • backbone - noun the part of a network that connects other networks together;  fortitude and determination;  the part of a book's cover that encloses the inner side of the book's pages and that faces outward when the book is shelved;  the series of vertebrae forming the axis of the skeleton and protecting the spinal cord;  a central cohesive source of support and stability.
  • backed - adj. having a back or backing, usually of a specified type; used of film that is coated on the side opposite the emulsion with a substance to absorb light;  having backing.
  • backflow - noun a flow that returns toward its source.
  • background - noun (computer science) the area of the screen in graphical user interfaces against which icons and windows appear; a person's social heritage: previous experience or training; information that is essential to understanding a situation or problem; the part of a scene (or picture) that lies behind objects in the foreground;  relatively unimportant or inconspicuous accompanying situation;  extraneous signals that can be confused with the phenomenon to be observed or measured;  scenery hung at back of stage;  the state of the environment in which a situation exists;  verbunderstate the importance or quality of.
  • backing - noun the act of providing approval and support; something forming a back that is added for strengthening;  financial resources provided to make some project possible.
  • backpack - noun a bag carried by a strap on your back or shoulder; verb hike with a backpack.
  • backward - adj. directed or facing toward the back or rear;  (used of temperament or behavior) marked by a retiring nature;  retarded in intellectual development;  adv. in a manner or order or direction the reverse of normal;  in or to or toward a past time;  at or to or toward the back or rear.
  • backwards - adv. at or to or toward the back or rear;  in a manner or order or direction the reverse of normal.
  • bacteria - noun (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered plants.
  • bacterial - adj. relating to or caused by bacteria.
  • bactericidal - adj. preventing infection by inhibiting the growth or action of microorganisms.
  • bacterium - noun (microbiology) single-celled or noncellular spherical or spiral or rod-shaped organisms lacking chlorophyll that reproduce by fission; important as pathogens and for biochemical properties; taxonomy is difficult; often considered plants.
  • bad - adj. feeling physical discomfort or pain (`tough' is occasionally used colloquially for `bad');  (of foodstuffs) not in an edible or usable condition;  not working properly;  reproduced fraudulently;  having undesirable or negative qualities;  characterized by wickedness or immorality;  capable of harming;  physically unsound or diseased; very intense;  not financially safe or secure;  nonstandard;  below average in quality or performance;  not capable of being collected; feeling or expressing regret or sorrow or a sense of loss over something done or undone;  adv. very much; strongly;  with great intensity (`bad' is a nonstandard variant for `badly');  noun that which is below standard or expectations as of ethics or decency.
  • badly - adv. with unusual distress or resentment or regret or emotional display;  in a disadvantageous way; to someone's disadvantage;  without skill or in a displeasing manner;  to a severe or serious degree;  very much; strongly;  with great intensity (`bad' is a nonstandard variant for `badly');  in a disobedient or naughty way; evilly or wickedly;  (`ill' is often used as a combining form) in a poor or improper or unsatisfactory manner; not well;  unfavorably or with disapproval.
  • bag - noun a flexible container with a single opening;  a portable rectangular container for carrying clothes;  a container used for carrying money and small personal items or accessories (especially by women);  an ugly or ill-tempered woman;  the quantity of game taken in a particular period (usually by one person);  the quantity that a bag will hold;  an activity that you like or at which you are superior; mammary gland of bovids (cows and sheep and goats);  place that runner must touch before scoring;  verb capture or kill, as in hunting; put into a bag;  hang loosely, like an empty bag;  take unlawfully; bulge out; form a bulge outward, or be so full as to appear to bulge.
  • bake - verb cook and make edible by putting in a hot oven;  prepare with dry heat in an oven;  heat by a natural force.
  • baked - adj. (bread and pastries) cooked by dry heat (as in an oven);  hardened by subjecting to intense heat;  dried out by heat or excessive exposure to sunlight.
  • bakery - noun a workplace where baked goods (breads and cakes and pastries) are produced or sold.
  • baking - adj. as hot as if in an oven;  noun cooking by dry heat in an oven;  making bread or cake or pastry etc..
  • balance - noun a scale for weighing; depends on pull of gravity; equality between the totals of the credit and debit sides of an account;  the difference between the totals of the credit and debit sides of an account;  equality of distribution;  a state of equilibrium;  a wheel that regulates the rate of movement in a machine; especially a wheel oscillating against the hairspring of a timepiece to regulate its beat;  a weight that balances another weight;  (mathematics) an attribute of a shape or relation; exact reflection of form on opposite sides of a dividing line or plane;  harmonious arrangement or relation of parts or elements within a whole (as in a design);  the seventh sign of the zodiac; the sun is in this sign from about September 23 to October 22;  (astrology) a person who is born while the sun is in Libra;  something left after other parts have been taken away;  verbcompute credits and debits of an account;  bring into balance or equilibrium;  be in equilibrium;  hold or carry in equilibrium.
  • balanced - adj. total debits and credits are equal;  being in a state of proper balance or equilibrium.
  • balancing - noun getting two things to correspond.
  • ball - noun a pitch that is not in the strike zone;  the game of baseball;  round object that is hit or thrown or kicked in games;  a spherical object used as a plaything;  a more or less rounded anatomical body or mass;  a lavish dance requiring formal attire;  a compact mass;  the people assembled at a lavish formal dance; United States comedienne best known as the star of a popular television program (1911-1989);  an object with a spherical shape;  a solid projectile that is shot by a musket;  one of the two male reproductive glands that produce spermatozoa and secrete androgens;  verb form into a ball by winding or rolling.
  • ballistics - noun the science of flight dynamics;  the trajectory of an object in free flight.
  • balloon - noun large tough nonrigid bag filled with gas or heated air; small thin inflatable rubber bag with narrow neck;  verb become inflated;  ride in a hot-air balloon.
  • ballooning - noun flying in a balloon.
  • baltimore - noun the largest city in Maryland; a major seaport and industrial center.
  • banana - noun elongated crescent-shaped yellow fruit with soft sweet flesh;  any of several tropical and subtropical treelike herbs of the genus Musa having a terminal crown of large entire leaves and usually bearing hanging clusters of elongated fruits.
  • band - noun a thin flat strip of flexible material that is worn around the body or one of the limbs (especially to decorate the body);  an adornment consisting of a strip of a contrasting color or material;  a restraint put around something to hold it together;  a strip of material attached to the leg of a bird to identify it (as in studies of bird migration);  a thin flat strip or loop of flexible material that goes around or over something else;  a stripe or stripes of contrasting color;  a range of frequencies between two limits;  instrumentalists not including string players;  jewelry consisting of a circlet of precious metal (often set with jewels) worn on the finger;  a cord-like tissue connecting two larger parts of an anatomical structure;  an unofficial association of people or groups;  a group of musicians playing popular music for dancing;  verb bind or tie together, as with a band; attach a ring to the foot of, in order to identify.
  • bandaged - adj. covered or wrapped with a bandage.
  • banded - adj. identified with a band especially around a leg; characterized by a band of especially white around the body; marked with bands or strips of contrasting color or texture.
  • banding - noun an adornment consisting of a strip of a contrasting color or material;  a stripe or stripes of contrasting color.
  • bank - noun a flight maneuver; aircraft tips laterally about its longitudinal axis (especially in turning);  a building in which the business of banking transacted;  an arrangement of similar objects in a row or in tiers;  a long ridge or pile;  sloping land (especially the slope beside a body of water);  a slope in the turn of a road or track; the outside is higher than the inside in order to reduce the effects of centrifugal force;  the funds held by a gambling house or the dealer in some gambling games;  a supply or stock held in reserve for future use (especially in emergencies);  a container (usually with a slot in the top) for keeping money at home;  a financial institution that accepts deposits and channels the money into lending activities; verb cover with ashes so to control the rate of burning;  enclose with a bank;  tip laterally;  be in the banking business;  act as the banker in a game or in gambling;  do business with a bank or keep an account at a bank;  have confidence or faith in;  put into a bank account.
  • banned - adj. forbidden by law.
  • baptist - adj. of or pertaining to or characteristic of the Baptist church;  noun follower of Baptistic doctrines.
  • bar - noun a rigid piece of metal or wood; usually used as a fastening or obstruction or weapon;  an obstruction (usually metal) placed at the top of a goal;  a counter where you can obtain food or drink;  (law) a railing that encloses the part of the courtroom where the judges and lawyers sit and the case is tried;  a heating element in an electric fire;  a horizontal rod that serves as a support for gymnasts as they perform exercises;  a submerged (or partly submerged) ridge in a river or along a shore;  (meteorology) a unit of pressure equal to a million dynes per square centimeter;  the act of preventing;  a room or establishment where alcoholic drinks are served over a counter;  a portable.30 caliber automatic rifle operated by gas pressure and fed by cartridges from a magazine; used by United States troops in World War I and in World War II and in the Korean War;  a block of solid substance (such as soap or wax); musical notation for a repeating pattern of musical beats;  the body of individuals qualified to practice law in a particular jurisdiction;  verbprevent from entering; keep out;  secure with, or as if with, bars; render unsuitable for passage;  expel, as if by official decree.
  • barely - adv. by a small margin;  in a sparse or scanty way.
  • bark - noun a sailing ship with 3 (or more) masts;  the sound made by a dog;  a noise resembling the bark of a dog;  tough protective covering of the woody stems and roots of trees and other woody plants;  verb tan (a skin) with bark tannins;  speak in an unfriendly tone;  make barking sounds;  remove the bark of a tree;  cover with bark.
  • barometric - adj. relating to atmospheric pressure or indicated by a barometer.
  • baroreceptor - noun a sensory receptor that responds to pressure.
  • barrel-shaped - adj. having the general shape of a barrel.
  • barrier - noun a structure or object that impedes free movement; any condition that makes it difficult to make progress or to achieve an objective;  anything serving to maintain separation by obstructing vision or access.
  • bars - noun gymnastic apparatus consisting of two parallel wooden rods supported on uprights.
  • bartholin - noun Danish physician who discovered Bartholin's gland (1585-1629).
  • basal - adj. of primary importance;  serving as or forming a base; especially of leaves; located at the base of a plant or stem; especially arising directly from the root or rootstock or a root-like stem.
  • base - adj. debased; not genuine;  illegitimate;  having or showing an ignoble lack of honor or morality;  of low birth or station (`base' is archaic in this sense);  not adhering to ethical or moral principles; (used of metals) consisting of or alloyed with inferior metal;  serving as or forming a base;  noun a support or foundation;  place that runner must touch before scoring;  (electronics) the part of a transistor that separates the emitter from the collector;  installation from which a military force initiates operations;  a flat bottom on which something is intended to sit;  the principal ingredient of a mixture;  the place where you are stationed and from which missions start and end;  (anatomy) the part of an organ nearest its point of attachment;  the bottom or lowest part;  (numeration system) the positive integer that is equivalent to one in the next higher counting place;  the bottom side of a geometric figure from which the altitude can be constructed;  any of various water-soluble compounds capable of turning litmus blue and reacting with an acid to form a salt and water;  lowest support of a structure;  the stock of basic facilities and capital equipment needed for the functioning of a country or area;  the fundamental assumptions from which something is begun or developed or calculated or explained;  (linguistics) the form of a word after all affixes are removed;  a lower limit;  a terrorist network intensely opposed to the United States that dispenses money and logistical support and training to a wide variety of radical Islamic terrorist groups; has cells in more than 50 countries;  the most important or necessary part of something;  verb use as a basis for; found on;  assign to a station;  use (purified cocaine) by burning it and inhaling the fumes.
  • baseball - noun a ball game played with a bat and ball between two teams of nine players; teams take turns at bat trying to score runs;  a ball used in playing baseball.
  • based - adj. having a base of operations (often used as a combining form);  having a base;  having a basis; often used as combining terms;  being derived from (often followed by `on' or `upon').
  • baseline - noun the lines a baseball player must follow while running the bases;  an imaginary line or standard by which things are measured or compared;  the back line bounding each end of a tennis or handball court; when serving the server must not step over this line.
  • basement - noun the lowermost portion of a structure partly or wholly below ground level; often used for storage;  the ground floor facade or interior in Renaissance architecture.
  • basic - adj. of or denoting or of the nature of or containing a base; serving as a base or starting point;  pertaining to or constituting a base or basis;  reduced to the simplest and most significant form possible without loss of generality;  noun (usually plural) a necessary commodity for which demand is constant;  a popular programming language that is relatively easy to learn; an acronym for beginner's all-purpose symbolic instruction code; no longer in general use.
  • basically - adv. at bottom or by one's (or its) very nature.
  • basics - noun a statement of fundamental facts or principles; principles from which other truths can be derived.
  • basilar - adj. of or relating to or located at the base.
  • basin - noun a bowl-shaped vessel; usually used for holding food or liquids;  a natural depression in the surface of the land often with a lake at the bottom of it;  the quantity that a basin will hold;  a bathroom sink that is permanently installed and connected to a water supply and drainpipe; where you can wash your hands and face;  the entire geographical area drained by a river and its tributaries.
  • basis - noun the fundamental assumptions from which something is begun or developed or calculated or explained;  the most important or necessary part of something;  a relation that provides the foundation for something.
  • basket - noun a score in basketball made by throwing the ball through the hoop;  a container that is usually woven and has handles;  horizontal circular metal hoop supporting a net through which players try to throw the basketball;  the quantity contained in a basket.
  • basket weave - noun a cloth woven of two or more threads interlaced to suggest the weave of a basket.
  • basketball - noun a game played on a court by two opposing teams of 5 players; points are scored by throwing the ball through an elevated horizontal hoop;  an inflated ball used in playing basketball.
  • basophil - noun a leukocyte with basophilic granules easily stained by basic stains.
  • batch - noun a collection of things or persons to be handled together;  all the loaves of bread baked at the same time;  (often followed by `of') a large number or amount or extent;  verb batch together; assemble or process as a batch.
  • bathing - noun immersing the body in water or sunshine;  the act of washing yourself (or another person).
  • bathroom - noun a room (as in a residence) containing a bathtub or shower and usually a washbasin and toilet;  a room or building equipped with one or more toilets.
  • batter - noun a flour mixture thin enough to pour or drop from a spoon;  (baseball) a ballplayer who is batting;  verb make a dent or impression in;  strike violently and repeatedly;  strike against forcefully.
  • battery - noun an assault in which the assailant makes physical contact;  a device that produces electricity; may have several primary or secondary cells arranged in parallel or series;  a series of stamps operated in one mortar for crushing ores;  a collection of related things intended for use together;  a unit composed of the pitcher and catcher;  group of guns or missile launchers operated together at one place;  the heavy fire of artillery to saturate an area rather than hit a specific target.
  • battle - noun a hostile meeting of opposing military forces in the course of a war;  an energetic attempt to achieve something;  an open clash between two opposing groups (or individuals);  verbbattle or contend against in or as if in a battle.
  • bay - adj. (used of animals especially a horse) of a moderate reddish-brown color;  noun a horse of a moderate reddish-brown color;  a compartment in an aircraft used for some specific purpose; a compartment on a ship between decks; often used as a hospital; the sound of a hound on the scent;  an indentation of a shoreline larger than a cove but smaller than a gulf;  a small recess opening off a larger room;  small Mediterranean evergreen tree with small blackish berries and glossy aromatic leaves used for flavoring in cooking; also used by ancient Greeks to crown victors;  verb bark with prolonged noises, of dogs;  utter in deep prolonged tones.
  • bc - adv. before the Christian era; used following dates before the supposed year Christ was born.
  • bd - noun a bachelor's degree in religion.
  • be - noun a light strong brittle grey toxic bivalent metallic element; verb spend or use time;  work in a specific place, with a specific subject, or in a specific function;  have the quality of being; (copula, used with an adjective or a predicate noun);  have life, be alive;  be identical to; be someone or something;  occupy a certain position or area; be somewhere;  to remain unmolested, undisturbed, or uninterrupted -- used only in infinitive form;  happen, occur, take place;  have an existence, be extant;  form or compose;  be identical or equivalent to;  represent, as of a character on stage;  be priced at.
  • beach - noun an area of sand sloping down to the water of a sea or lake;  verb land on a beach.
  • bead - noun a small ball with a hole through the middle;  a beaded molding for edging or decorating furniture;  a shape that is spherical and small;  verb string together like beads;  decorate by sewing beads onto;  form into beads, as of water or sweat, for example.
  • beaded - adj. covered with beads or jewels or sequins;  covered with beads of liquid.
  • beads - noun several beads threaded together on a string.
  • beak - noun horny projecting mouth of a bird;  beaklike mouth of animals other than birds (e.g., turtles);  informal terms for the nose; verb hit lightly with a picking motion.
  • beaker - noun a cup (usually without a handle);  a flatbottomed jar made of glass or plastic; used for chemistry.
  • beam - noun long thick piece of wood or metal or concrete, etc., used in construction;  (nautical) breadth amidships;  a column of light (as from a beacon);  a group of nearly parallel lines of electromagnetic radiation;  a gymnastic apparatus used by women gymnasts;  a signal transmitted along a narrow path; guides pilots in darkness or bad weather;  verb smile radiantly; express joy through one's facial expression;  express with a beaming face or smile; broadcast over the airwaves, as in radio or television;  experience a feeling of well-being or happiness, as from good health or an intense emotion;  have a complexion with a strong bright color, such as red or pink;  emit light; be bright, as of the sun or a light.
  • bean-shaped - adj. having a shape resembling a bean.
  • bear - noun massive plantigrade carnivorous or omnivorous mammals with long shaggy coats and strong claws;  an investor with a pessimistic market outlook; an investor who expects prices to fall and so sells now in order to buy later at a lower price;  verb move while holding up or supporting;  bring forth, "The apple tree bore delicious apples this year";  take on as one's own the expenses or debts of another person;  have rightfully; of rights, titles, and offices; have;  have on one's person;  cause_to_be_born;  be pregnant with; put up with something or somebody unpleasant;  support or hold in a certain manner;  bring in;  behave in a certain manner;  contain or hold; have within.
  • bearing - adj. (of a structural member) withstanding a weight or strain;  producing or yielding;  noun a rotating support placed between moving parts to allow them to move easily;  dignified manner or conduct;  the direction or path along which something moves or along which it lies;  relevant relation or interconnection; heraldry consisting of a design or image depicted on a shield; characteristic way of bearing one's body.
  • beat - adj. very tired;  noun the act of beating to windward; sailing as close as possible to the direction from which the wind is blowing;  a stroke or blow;  a regular rate of repetition;  the sound of stroke or blow;  a regular route for a sentry or policeman;  a single pulsation of an oscillation produced by adding two waves of different frequencies; has a frequency equal to the difference between the two oscillations;  the basic rhythmic unit in a piece of music; (prosody) the accent in a metrical foot of verse;  the rhythmic contraction and expansion of the arteries with each beat of the heart;  a member of the beat generation; a nonconformist in dress and behavior;  verb come out better in a competition, race, or conflict;  give a beating to; subject to a beating, either as a punishment or as an act of aggression;  hit repeatedly;  strike (water or bushes) repeatedly to rouse animals for hunting;  strike (a part of one's own body) repeatedly, as in great emotion or in accompaniment to music;  stir vigorously;  shape by beating;  produce a rhythm by striking repeatedly;  make by pounding or trampling; move rhythmically;  indicate by beating, as with the fingers or drumsticks;  sail with much tacking or with difficulty;  move with a flapping motion;  move with a thrashing motion;  glare or strike with great intensity;  avoid paying;  be superior;  wear out completely;  be a mystery or bewildering to;  beat through cleverness and wit;  move with or as if with a regular alternating motion;  make a rhythmic sound;  make a sound like a clock or a timer.
  • beating - adj. expanding and contracting rhythmically as to the beating of the heart;  noun the act of inflicting corporal punishment with repeated blows;  the act of overcoming or outdoing.
  • beats - noun a United States youth subculture of the 1950s; rejected possessions or regular work or traditional dress; for communal living and psychedelic drugs and anarchism; favored modern forms of jazz (e.g., bebop).
  • beauty - noun the qualities that give pleasure to the senses;  an outstanding example of its kind;  a very attractive or seductive looking woman.
  • beck - noun a beckoning gesture.
  • become - verb enter or assume a certain state or condition;  come into existence;  undergo a change or development;  enhance the appearance of.
  • becoming - adj. displaying or setting off to best advantage; according with custom or propriety.
  • bed - noun a piece of furniture that provides a place to sleep;  a plot of ground in which plants are growing;  a foundation of earth or rock supporting a road or railroad track;  the flat surface of a printing press on which the type form is laid in the last stage of producing a newspaper or magazine or book etc.;  a depression forming the ground under a body of water;  (geology) a stratum of rock (especially sedimentary rock);  single thickness of usually some homogeneous substance;  a stratum of ore or coal thick enough to be mined with profit;  verb put to bed;  place (plants) in a prepared bed of soil;  furnish with a bed;  prepare for sleep;  have sexual intercourse with.
  • bedside - noun space by the side of a bed (especially the bed of a sick or dying person).
  • bedsore - noun a chronic ulcer of the skin caused by prolonged pressure on it (as in bedridden patients).
  • bee - noun any of numerous hairy-bodied insects including social and solitary species;  a social gathering to carry out some communal task or to hold competitions.
  • beef - noun cattle that are reared for their meat;  meat from an adult domestic bovine;  informal terms for objecting;  verb complain.
  • beer - noun a general name for alcoholic beverages made by fermenting a cereal (or mixture of cereals) flavored with hops.
  • before - adv. earlier in time; previously;  at or in the front.
  • beforehand - adj. being ahead of time or need;  adv. ahead of time; in anticipation.
  • begin - noun Israeli statesman (born in Russia) who (as prime minister of Israel) negotiated a peace treaty with Anwar Sadat (then the president of Egypt) (1913-1992);  verb set in motion, cause to start;  begin to speak or say;  begin to speak, understand, read, and write a language;  achieve or accomplish in the least degree, usually used in the negative;  begin an event that is implied and limited by the nature or inherent function of the direct object;  have a beginning, in a temporal, spatial, or evaluative sense;  have a beginning characterized in some specified way;  have a beginning, of a temporal event;  be the first item or point, constitute the beginning or start, come first in a series;  take the first step or steps in carrying out an action.
  • beginning - adj. serving to begin;  noun the act of starting something;  the first part or section of something;  the event consisting of the start of something;  the place where something begins, where it springs into being;  the time at which something is supposed to begin.
  • behave - verb behave in a certain manner;  behave well or properly; behave in a certain manner; show a certain behavior; conduct or comport oneself.
  • behavior - noun manner of acting or controlling yourself; (psychology) the aggregate of the responses or reactions or movements made by an organism in any situation;  the action or reaction of something (as a machine or substance) under specified circumstances;  (behavioral attributes) the way a person behaves toward other people.
  • behavioral - adj. of or relating to behavior.
  • behind - adj. having the lower score or lagging position in a contest; adv. in or to or toward the rear;  remaining in a place or condition that has been left or departed from;  in debt;  in or into an inferior position; of timepieces;  noun the fleshy part of the human body that you sit on.
  • being - noun the state or fact of existing;  a living thing that has (or can develop) the ability to act or function independently.
  • belief - noun any cognitive content held as true;  a vague idea in which some confidence is placed.
  • believe - verb accept as true; take to be true;  credit with veracity; follow a credo; have a faith; be a believer;  be confident about something;  judge or regard; look upon; judge.
  • bell - noun a hollow device made of metal that makes a ringing sound when struck;  the flared opening of a tubular device;  the sound of a bell being struck;  United States inventor (born in Scotland) of the telephone (1847-1922);  English painter; sister of Virginia Woolf; prominent member of the Bloomsbury Group (1879-1961);  a phonetician and father of Alexander Graham Bell (1819-1905);  the shape of a bell;  (nautical) each of the eight half-hour units of nautical time signaled by strokes of a ship's bell; eight bells signals 4:00, 8:00, or 12:00 o'clock, either a.m. or p.m.;  a percussion instrument consisting of a set of tuned bells that are struck with a hammer; used as an orchestral instrument;  a push button at an outer door that gives a ringing or buzzing signal when pushed;  verb attach a bell to.
  • belladonna - noun an alkaloidal extract or tincture of the poisonous belladonna plant that is used medicinally;  perennial Eurasian herb with reddish bell-shaped flowers and shining black berries; extensively grown in United States; roots and leaves yield atropine.
  • belly - noun the underpart of the body of certain vertebrates such as snakes or fish;  a protruding abdomen;  the hollow inside of something;  a part that bulges deeply;  the region of the body of a vertebrate between the thorax and the pelvis;  verb swell out or bulge out.
  • belong - verb be owned by; be in the possession of;  be classified with;  be suitable or acceptable;  be in the right place or situation; originate (in).
  • belonging - noun happiness felt in a secure relationship.
  • below - adv. at a later place;  in or to a place that is lower;  (in writing) see below;  on a floor below;  further down.
  • belt - noun a band to tie or buckle around the body (usually at the waist);  endless loop of flexible material between two rotating shafts or pulleys;  an elongated region where a specific condition is found; the act of hitting vigorously;  a vigorous blow;  a path or strip (as cut by one course of mowing);  verb fasten with a belt;  deliver a blow to; sing loudly and forcefully.
  • belt-like - adj. resembling a belt around something.
  • bend - noun curved segment (of a road or river or railroad track etc.);  diagonal line traversing a shield from the upper right corner to the lower left;  a town in central Oregon at the eastern foot of the Cascade Range;  a circular segment of a curve;  movement that causes the formation of a curve;  an angular or rounded shape made by folding;  verb change direction;  form a curve;  cause (a plastic object) to assume a crooked or angular form;  bend a joint;  turn from a straight course , fixed direction, or line of interest;  bend one's back forward from the waist on down.
  • bending - adj. not remaining rigid or straight;  noun the act of bending something;  movement that causes the formation of a curve; the property of being bent or deflected.
  • bends - noun pain resulting from rapid change in pressure.
  • beneath - adv. in or to a place that is lower.
  • beneficial - adj. promoting or enhancing well-being;  tending to promote physical well-being; beneficial to health.
  • benefit - noun something that aids or promotes well-being;  a performance to raise money for a charitable cause;  financial assistance in time of need;  verb be beneficial for;  derive a benefit from.
  • benign - adj. pleasant and beneficial in nature or influence; kindness of disposition or manner;  not dangerous to health; not recurrent or progressive (especially of a tumor).
  • benjamin - noun (Old Testament) the youngest and best-loved son of Jacob and Rachel and one of the twelve forebears of the tribes of Israel;  gum resin used especially in treating skin irritation.
  • bent - adj. of metal e.g.;  used especially of the head or upper back; fixed in your purpose;  altered from an originally straight condition; used of the back and knees; stooped;  noun a special way of doing something;  a relatively permanent inclination to react in a particular way;  an area of grassland unbounded by fences or hedges;  grass for pastures and lawns especially bowling and putting greens.
  • benzene - noun a colorless liquid hydrocarbon; highly inflammable; carcinogenic; the simplest of the aromatic compounds.
  • beriberi - noun avitaminosis caused by lack of thiamine (vitamin B1).
  • besides - adv. making an additional point; anyway;  in addition.
  • best - adj. (superlative of `good') having the most positive qualities; (comparative and superlative of `well') wiser or more advantageous and hence advisable;  adv. it would be sensible;  in a most excellent way or manner;  from a position of superiority or authority;  noun the supreme effort one can make;  the person who is most outstanding or excellent; someone who tops all others;  Canadian physiologist (born in the United States) who assisted F. G. Banting in research leading to the discovery of insulin (1899-1978);  verb get the better of.
  • best-known - adj. most familiar or renowned.
  • bet - noun the act of gambling;  the money risked on a gamble;  verbmaintain with or as if with a bet;  stake on the outcome of an issue; have faith or confidence in.
  • beta - adj. preliminary or testing stage of a software or hardware product;  second in order of importance;  noun the 2nd letter of the Greek alphabet;  beets.
  • beta endorphin - noun an endorphin produced by the pituitary gland that suppresses pain.
  • better - adj. (comparative and superlative of `well') wiser or more advantageous and hence advisable;  (comparative of `good') superior to another (of the same class or set or kind) in excellence or quality or desirability or suitability; more highly skilled than another; (comparative of `good') changed for the better in health or fitness; more than half;  adv. comparative of `well'; in a better or more excellent manner or more advantageously or attractively or to a greater degree etc.;  from a position of superiority or authority;  nounthe superior one of two alternatives;  a superior person having claim to precedence;  someone who bets;  verb get better;  to make better; surpass in excellence.
  • betterment - noun an improvement that adds to the value of a property or facility;  the act of relieving ills and changing for the better;  a change for the better; progress in development.
  • between - adv. in between;  in the interval.
  • bewildering - adj. causing bafflement.
  • beyond - adv. in addition;  farther along in space or time or degree; on the farther side from the observer.
  • bi - noun a heavy brittle diamagnetic trivalent metallic element (resembles arsenic and antimony chemically); usually recovered as a by-product from ores of other metals.
  • biaxial - adj. having two axes.
  • biblical - adj. of or pertaining to or contained in or in accordance with the Bible;  in keeping with the nature of the Bible or its times or people.
  • bibliographic - adj. relating to or dealing with bibliography.
  • bicarbonate - noun a salt of carbonic acid (containing the anion HCO3) in which one hydrogen atom has been replaced; an acid carbonate.
  • biceps - noun any skeletal muscle having two origins (but especially the muscle that flexes the forearm).
  • bicipital - adj. having two heads or points of origin as a biceps.
  • biconcave - adj. concave on both sides.
  • bicuspid - adj. having two cusps or points (especially a molar tooth);  noun a tooth having two cusps or points; located between the incisors and the molars.
  • bicycle - noun a wheeled vehicle that has two wheels and is moved by foot pedals;  verb ride a bicycle.
  • bidirectional - adj. reactive or functioning or allowing movement in two usually opposite directions.
  • bifid - adj. divided into two lobes.
  • bifurcation - noun the act of splitting into two branches;  the place where something divides into two branches;  a bifurcating branch (one or both of them).
  • big - adj. in an advanced stage of pregnancy;  conspicuous in position or importance;  given or giving freely;  generous and understanding and tolerant;  marked by intense physical force; significant;  loud and firm;  feeling self-importance;  prodigious;  above average in size or number or quantity or magnitude or extent;  (of animals) fully developed;  very intense;  exhibiting self-importance; adv. in a major way;  on a grand scale;  extremely well;  in a boastful manner.
  • bigger - adj. large or big relative to something else.
  • bike - noun a wheeled vehicle that has two wheels and is moved by foot pedals;  a motor vehicle with two wheels and a strong frame; verb ride a bicycle.
  • bilateral - adj. having two sides or parts;  affecting or undertaken by two parties;  having identical parts on each side of an axis.
  • bilaterally - adv. in a bilateral manner.
  • bile - noun a digestive juice secreted by the liver and stored in the gallbladder; aids in the digestion of fats.
  • bilirubin - noun an orange-yellow pigment in the bile that forms as a product of hemoglobin; excess amounts in the blood produce the yellow appearance observed in jaundice.
  • bill - noun the entertainment offered at a public presentation;  a brim that projects to the front to shade the eyes;  a long-handled saw with a curved blade;  a list of particulars (as a playbill or bill of fare);  an itemized statement of money owed for goods shipped or services rendered;  a statute in draft before it becomes law;  a piece of paper money (especially one issued by a central bank);  horny projecting mouth of a bird;  a sign posted in a public place as an advertisement; an advertisement (usually printed on a page or in a leaflet) intended for wide distribution;  verb advertise especially by posters or placards;  publicize or announce by placards;  demand payment.
  • billion - adj. denoting a quantity consisting of one thousand million items or units in the United States;  denoting a quantity consisting of one million million items or units in Great Britain;  noun the number that is represented as a one followed by 9 zeros;  the number that is represented as a one followed by 12 zeros; in the United Kingdom the usage followed in the United States is frequently seen;  a very large indefinite number (usually hyperbole).
  • bilobed - adj. having two lobes.
  • bind - noun something that hinders as if with bonds;  verb form a chemical bond with;  make fast; tie or secure, with or as if with a rope;  wrap around with something so as to cover or enclose;  provide with a binding;  create social or emotional ties;  cause to be constipated;  bind by an obligation; cause to be indebted;  fasten or secure with a rope, string, or cord;  secure with or as if with ropes; stick to firmly.
  • binding - adj. causing constipation;  hindering freedom of movement;  executed with proper legal authority;  noun the protective covering on the front, back, and spine of a book;  strip sewn over or along an edge for reinforcement or decoration;  the capacity to attract and hold something;  the act of applying a bandage.
  • binocular - adj. relating to both eyes.
  • biochemical - adj. of or relating to biochemistry; involving chemical processes in living organisms.
  • biochemically - adv. with respect to biochemistry.
  • biochemistry - noun the organic chemistry of compounds and processes occuring in organisms; the effort to understand biology within the context of chemistry.
  • biogenic - adj. essential for maintaining the fundamental life processes;  produced by living organisms or biological processes.
  • biologic - adj. pertaining to biology or to life and living things.
  • biological - adj. of parents and children; related by blood;  pertaining to biology or to life and living things.
  • biologically - adv. with respect to biology.
  • biologist - noun (biology) a scientist who studies living organisms.
  • biology - noun the science that studies living organisms; characteristic life processes and phenomena of living organisms;  all the plant and animal life of a particular region.
  • biopsy - noun examination of tissues or liquids from the living body to determine the existence or cause of a disease.
  • biosphere - noun the regions of the surface and atmosphere of the Earth (or other planet) where living organisms exist.
  • biosynthesis - noun production of a chemical compound by a living organism.
  • biosynthetic - adj. of or relating to biosynthesis.
  • biotechnology - noun the branch of engineering science in which biological science is used to study the relation between workers and their environments;  the branch of molecular biology that studies the use of microorganisms to perform specific industrial processes.
  • biotin - noun a B vitamin that aids in body growth.
  • bipolar - adj. having two poles;  of, pertaining to, or occurring in both polar regions;  of or relating to manic depressive illness.
  • bird - noun warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings;  the flesh of a bird or fowl (wild or domestic) used as food;  badminton equipment consisting of a ball of cork or rubber with a crown of feathers;  a cry or noise made to express displeasure or contempt;  informal terms for a (young) woman;  verb watch and study birds in their natural habitat.
  • birth - noun the event of being born;  the time when something begins (especially life);  the process of giving birth;  the kinship relation of an offspring to the parents;  verb cause_to_be_born.
  • birthday - noun an anniversary of the day on which a person was born (or the celebration of it);  the date on which a person was born.
  • birthing - noun the process of giving birth.
  • birthplace - noun the place where someone was born;  where something originated or was nurtured in its early existence.
  • bit - noun the cutting part of a drill; usually pointed and threaded and is replaceable in a brace or bitstock or drill press;  piece of metal held in horse's mouth by reins and used to control the horse while riding; a small fragment of something broken off from the whole;  a unit of measurement of information (from binary + digit); the amount of information in a system having two equiprobable states;  a short theatrical performance that is part of a longer program;  a small fragment;  an instance of some kind;  a small amount of solid food; a mouthful;  a small quantity;  an indefinitely short time.
  • bite - noun a portion removed from the whole;  the act of gripping or chewing off with the teeth and jaws;  (angling) an instance of a fish taking the bait;  a light informal meal;  a wound resulting from biting by an animal or a person;  a strong odor or taste property;  wit having a sharp and caustic quality;  a small amount of solid food; a mouthful;  a painful wound caused by the thrust of an insect's stinger into skin;  verb penetrate or cut, as with a knife;  to grip, cut off, or tear with or as if with the teeth or jaws;  cause a sharp or stinging pain or discomfort;  deliver a sting to.
  • biting - adj. causing a sharply painful or stinging sensation; used especially of cold;  capable of wounding.
  • bitter - adj. proceeding from or exhibiting great hostility or animosity; expressive of severe grief or regret;  one of the four basic taste sensations; sharp and disagreeable; like the taste of quinine;  very difficult to accept or bear;  marked by strong resentment or cynicism; causing a sharply painful or stinging sensation; used especially of cold;  harsh or corrosive in tone;  adv. extremely and sharply;  nounthe taste experience when quinine or coffee is taken into the mouth; English term for a dry sharp-tasting ale with strong flavor of hops (usually on draft);  the property of having a harsh unpleasant taste; verb make bitter.
  • bitterly - adv. in a resentful manner;  indicating something hard to accept;  extremely and sharply.
  • bitterness - noun a rough and bitter manner;  the property of having a harsh unpleasant taste;  the taste experience when quinine or coffee is taken into the mouth;  a feeling of deep and bitter anger and ill-will.
  • black - adj. marked by anger or resentment or hostility;  of or belonging to a racial group having dark skin especially of sub-Saharan African origin;  extremely dark;  being of the achromatic color of maximum darkness; having little or no hue owing to absorption of almost all incident light;  (of the face) made black especially as with suffused blood;  soiled with dirt or soot;  dressed in black;  (of coffee) without cream or sugar;  (of events) having extremely unfortunate or dire consequences; bringing ruin; stemming from evil characteristics or forces; wicked or dishonorable; (used of conduct or character) deserving or bringing disgrace or shame;  offering little or no hope;  (of intelligence operations) deliberately misleading;  harshly ironic or sinister;  distributed or sold illicitly;  noun black clothing (worn as a sign of mourning);  (board games) the darker pieces;  the quality or state of the achromatic color of least lightness (bearing the least resemblance to white);  a person with dark skin who comes from Africa (or whose ancestors came from Africa);  popular child actress of the 1930's (born in 1928);  British chemist who identified carbon dioxide and who formulated the concepts of specific heat and latent heat (1728-1799);  total absence of light;  verb make or become black.
  • bladder - noun a bag that fills with air;  a distensible membranous sac (usually containing liquid or gas).
  • blade - noun the flat part of a tool or weapon that (usually) has a cutting edge;  flat surface that rotates and pushes against air or water;  the part of the skate that slides on the ice;  a broad flat body part (as of the shoulder or tongue);  a cut of beef from the shoulder blade;  something long and thin resembling a blade of grass;  a dashing young man;  especially a leaf of grass or the broad portion of a leaf as distinct from the petiole;  a cutting or thrusting weapon that has a long metal blade and a hilt with a hand guard.
  • bland - adj. lacking stimulating characteristics; uninteresting;  lacking taste or flavor or tang;  smoothly agreeable and courteous with a degree of sophistication.
  • blanket - adj. broad in scope or content;  noun bedding that keeps a person warm in bed;  a layer of lead surrounding the highly reactive core of a nuclear reactor;  anything that covers;  verb cover as if with a blanket;  form a blanket-like cover (over).
  • blast - noun a very long fly ball;  an explosion (as of dynamite); intense adverse criticism;  a highly pleasurable or exciting experience;  a sudden very loud noise;  a strong current of air;  verbuse explosives on;  make a strident sound;  hit hard.
  • blastocoel - noun the fluid-filled cavity inside a blastula.
  • blastocyst - noun the blastula of mammals.
  • blastomere - noun any cell resulting from cleavage of a fertilized egg.
  • bleached - adj. having lost freshness or brilliance of color;  (used of color) artificially produced; not natural.
  • bleed - verb draw blood;  drain of liquid or steam;  get or extort (money or other possessions) from someone;  lose blood from one's body;  be diffused.
  • bleeding - noun flow of blood from a ruptured blood vessels.
  • blend - noun the act of blending components together thoroughly;  a new word formed by joining two others and combining their meanings;  an occurrence of thorough mixing;  verb mix together different elements;  combine into one;  blend or harmonize.
  • blended - adj. combined or mixed together so that the constituent parts are indistinguishable.
  • blind - adj. unable or unwilling to perceive or understand;  not based on reason or evidence;  unable to see;  noun something that keeps things out or hinders sight;  a hiding place sometimes used by hunters (especially duck hunters);  people who have severe visual impairments, considered as a group;  something intended to misrepresent the true nature of an activity;  verb make dim by comparison or conceal;  make blind by putting the eyes out;  render unable to see.
  • blindness - noun the state of being blind or lacking sight.
  • blink - noun a reflex that closes and opens the eyes rapidly;  verbbriefly shut the eyes;  force to go away by blinking;  gleam or glow intermittently.
  • blinking - adj. closing the eyes intermittently and rapidly;  (used of persons) informal intensifiers;  noun a reflex that closes and opens the eyes rapidly.
  • blinks - noun small Indian lettuce of northern regions.
  • blistering - adj. very fast; capable of quick response and great speed;  hot enough to raise (or as if to raise) blisters;  marked by harshly abusive criticism;  harsh or corrosive in tone;  noun the formation of vesicles.
  • blizzard - noun a storm with widespread snowfall accompanied by strong winds;  a series of unexpected and unpleasant occurrences.
  • block - noun a solid piece of something (usually having flat rectangular sides);  housing in a large building that is divided into separate units;  an inability to remember or think of something you normally can do; often caused by emotional tension;  a number or quantity of related things dealt with as a unit;  a rectangular area in a city surrounded by streets and usually containing several buildings; (computer science) a sector or group of sectors that function as the smallest data unit permitted;  a three-dimensional shape with six square or rectangular sides;  the act of obstructing or deflecting someone's movements;  a platform from which an auctioneer sells; an obstruction in a pipe or tube;  a metal casting containing the cylinders and cooling ducts of an engine;  a simple machine consisting of a wheel with a groove in which a rope can run to change the direction or point of application of a force applied to the rope;  verb shape into a block or blocks;  shape by using a block; support, secure, or raise with a block;  stamp or emboss a title or design on a book with a block;  interrupt the normal function of by means of anesthesia;  run on a block system;  prohibit the conversion or use of (assets);  be unable to remember;  interfere with or prevent the reception of signals;  impede the movement of (an opponent or a ball);  block passage through;  render unsuitable for passage; obstruct;  shut out from view or get in the way so as to hide from sight;  hinder or prevent the progress or accomplishment of;  stop from happening or developing.
  • blockage - noun the act of blocking;  an obstruction in a pipe or tube;  the state or condition of being obstructed.
  • blocked - adj. completely obstructed or closed off;  closed to traffic.
  • blocker - noun a class of drugs that inhibit (block) some biological process;  a football player whose responsibility is to block players attempting to stop an offensive play.
  • blocking - noun the act of obstructing or deflecting someone's movements.
  • blood - noun temperament or disposition;  the fluid (red in vertebrates) that is pumped by the heart;  people viewed as members of a group;  the descendants of one individual;  a dissolute man in fashionable society;  verb smear with blood, as in a hunting initiation rite, where the face of a person is smeared with the blood of the kill.
  • blood cell - noun either of two types of cells (erythrocytes and leukocytes) and sometimes including platelets.
  • blood clotting - noun a process in which liquid blood is changed into a semisolid mass (a blood clot).
  • blood pressure - noun the pressure of the circulating blood against the walls of the blood vessels; results from the systole of the left ventricle of the heart; sometimes measured for a quick evaluation of a person's health.
  • blood type - noun human blood cells (usually just the red blood cells) that have the same antigens.
  • bloodstream - noun the blood flowing through the circulatory system.
  • bloody - adj. having or covered with or accompanied by blood; (used of persons) informal intensifiers;  adv. extremely;  verb cover with blood.
  • blow - noun forceful exhalation through the nose or mouth;  a powerful stroke with the fist or a weapon;  an impact (as from a collision);  street names for cocaine;  an unpleasant or disappointing surprise;  an unfortunate happening that hinders or impedes; something that is thwarting or frustrating;  a strong current of air; verb exhale hard;  free of obstruction by blowing air through;  burst suddenly;  shape by blowing;  allow to regain its breath;  cause to be revealed and jeopardized;  lay eggs;  spout moist air from the blowhole;  cause to move by means of an air current;  cause air to go in, on, or through;  play or sound a wind instrument;  make a sound as if blown;  sound by having air expelled through a tube;  spend lavishly or wastefully on;  be blowing or storming;  melt, break, or become otherwise unusable;  show off;  leave; informal or rude;  be in motion due to some air or water current;  provide sexual gratification through oral stimulation;  spend thoughtlessly; throw away;  make a mess of, destroy or ruin.
  • blowing - noun processing that involves blowing a gas.
  • blown - adj. breathing laboriously or convulsively;  being moved or acted upon by moving air or vapor;  (of glass) formed by forcing air into a molten ball.
  • blue - adj. causing dejection;  of the color intermediate between green and violet; having a color similar to that of a clear unclouded sky;  low in spirits;  morally rigorous and strict;  used to signify the Union forces in the American Civil War (who wore blue uniforms); suggestive of sexual impropriety;  characterized by profanity or cursing;  belonging to or characteristic of the nobility or aristocracy; noun any of numerous small butterflies of the family Lycaenidae; blue clothing;  blue color or pigment; resembling the color of the clear sky in the daytime;  any organization or party whose uniforms or badges are blue;  the sodium salt of amobarbital that is used as a barbiturate; used as a sedative and a hypnotic;  the sky as viewed during daylight;  used to whiten laundry or hair or give it a bluish tinge;  verb turn blue.
  • blueprint - noun photographic print of plans or technical drawings etc.;  something intended as a guide for making something else;  verbmake a blueprint of.
  • bluish-purple - adj. of purple tinged with blue.
  • blunt - adj. devoid of any qualifications or disguise or adornment; characterized by directness in manner or speech; without subtlety or evasion;  used of a knife or other blade; not sharp;  having a broad or rounded end;  verb make less sharp;  make less intense;  make less lively, intense, or vigorous; impair in vigor, force, activity, or sensation;  make dull or blunt;  make numb or insensitive.
  • blur - noun a hazy or indistinct representation;  verb become vague or indistinct;  make dim or indistinct;  to make less distinct or clear; make unclear, indistinct, or blurred;  make a smudge on; soil by smudging;  become glassy; lose clear vision.
  • blurry - adj. indistinct or hazy in outline.
  • bmr - noun the rate at which heat is produced by an individual in a resting state.
  • board - noun a flat piece of material designed for a special purpose; a flat portable surface (usually rectangular) designed for board games;  food or meals in general;  a committee having supervisory powers;  a stout length of sawn timber; made in a wide variety of sizes and used for many purposes;  a printed circuit that can be inserted into expansion slots in a computer to increase the computer's capabilities;  electrical device consisting of a flat insulated surface that contains switches and dials and meters for controlling other electrical devices;  a table at which meals are served;  a vertical surface on which information can be displayed to public view;  verbprovide food and lodging (for);  lodge and take meals (at);  get on board of (trains, buses, ships, aircraft, etc.);  live and take one's meals at or in.
  • boards - noun the boarding that surrounds an ice hockey rink;  the stage of a theater.
  • boast - noun speaking of yourself in superlatives;  verb show off; wear or display in an ostentatious or proud manner.
  • boat - noun a small vessel for travel on water;  a dish (often boat-shaped) for serving gravy or sauce;  verb ride in a boat on water.
  • boat-shaped - adj. having a concave shape like a boat.
  • bob - noun a short abrupt inclination (as of the head);  a small float usually made of cork; attached to a fishing line;  a hanging weight, especially a metal ball on a string;  a hair style for women and children; a short haircut all around;  a short or shortened tail of certain animals;  a long racing sled (for 2 or more people) with a steering mechanism;  a former monetary unit in Great Britain;  verbcut hair in the style of a bob;  move up and down repeatedly;  make a curtsy; usually done only by girls and women; as a sign of respect; remove or shorten the tail of an animal;  ride a bobsled.
  • bodily - adj. having or relating to a physical material body;  affecting or characteristic of the body as opposed to the mind or spirit;  of or relating to or belonging to the body;  adv. in bodily form.
  • body - noun the external structure of a vehicle;  the entire structure of an organism (especially an animal or human being);  a natural object consisting of a dead animal or person;  the central message of a communication;  a group of persons associated by some common tie or occupation and regarded as an entity;  a collection of particulars considered as a system;  an individual 3-dimensional object that has mass and that is distinguishable from other objects; the property of holding together and retaining its shape;  the body excluding the head and neck and limbs;  verb invest with or as with a body; give body to.
  • bohr - noun Danish physicist who studied atomic structure and radiations; the Bohr theory of the atom accounted for the spectrum of hydrogen (1885-1962).
  • bold - adj. fearless and daring;  clear and distinct;  very steep; having a prominent and almost vertical front;  noun a typeface with thick heavy lines.
  • boldface - noun a typeface with thick heavy lines;  verb print in boldface.
  • bolus - noun a large pill; used especially in veterinary medicine;  a small round soft mass (as of chewed food).
  • bond - adj. held in slavery;  noun British secret operative 007 in novels by Ian Fleming;  United States civil rights leader who was elected to the legislature in Georgia but was barred from taking his seat because he opposed the Vietnam War (born 1940);  a certificate of debt (usually interest-bearing or discounted) that is issued by a government or corporation in order to raise money; the issuer is required to pay a fixed sum annually until maturity and then a fixed sum to repay the principal;  a superior quality of strong durable white writing paper; originally made for printing documents;  a connection that fastens things together;  a restraint that confines or restricts freedom (especially something used to tie down or restrain a prisoner);  the property of sticking together (as of glue and wood) or the joining of surfaces of different composition;  an electrical force linking atoms;  (criminal law) money that must be forfeited by the bondsman if an accused person fails to appear in court for trial;  a connection based on kinship or marriage or common interest;  verbbring together in a common cause or emotion;  issue bonds on;  stick to firmly;  create social or emotional ties.
  • bonded - adj. secured by written agreement.
  • bonding - noun fastening firmly together;  (dentistry) a technique for repairing a tooth; resinous material is applied to the surface of the tooth where it adheres to the tooth's enamel;  a close personal relationship that forms between people (as between husband and wife or parent and child).
  • bone - adj. consisting of or made up of bone;  noun a shade of white the color of bleached bones;  rigid connective tissue that makes up the skeleton of vertebrates;  the porous calcified substance from which bones are made;  verb remove the bones from;  study intensively, as before an exam.
  • bones - noun a percussion instrument consisting of a pair of hollow pieces of wood or bone (usually held between the thumb and fingers) that are made to click together (as by Spanish dancers) in rhythm with the dance.
  • bony - adj. having bones especially many or prominent bones;  very thin especially from disease or hunger or cold;  composed of or containing bone.
  • boo - noun a cry or noise made to express displeasure or contempt; verb show displeasure, as after a performance or speech.
  • book - noun physical objects consisting of a number of pages bound together;  a number of sheets (ticket or stamps etc.) bound together on one edge;  a major division of a long written composition;  a written work or composition that has been published (printed on pages bound together);  a collection of rules or prescribed standards on the basis of which decisions are made;  a collection of playing cards satisfying the rules of a card game;  the sacred writings of the Christian religions;  the sacred writings of Islam revealed by God to the prophet Muhammad during his life at Mecca and Medina;  a compilation of the known facts regarding something or someone;  a written version of a play or other dramatic composition; used in preparing for a performance;  a record in which commercial accounts are recorded;  verb engage for a performance;  record a charge in a police register;  register in a hotel booker;  arrange for and reserve (something for someone else) in advance.
  • bookstore - noun a shop where books are sold.
  • boost - noun the act of giving hope or support to someone;  the act of giving a push;  an increase in cost;  verb give a boost to; be beneficial to;  increase or raise;  push or shove upward, as if from below or behind;  increase;  contribute to the progress or growth of.
  • border - noun a strip forming the outer edge of something;  a decorative recessed or relieved surface on an edge;  a line that indicates a boundary;  the boundary of a surface;  the boundary line or the area immediately inside the boundary;  verb lie adjacent to another or share a boundary;  provide with a border or edge;  extend on all sides of simultaneously; encircle;  enclose in or as if in a frame;  form the boundary of; be contiguous to.
  • bordered - adj. having a border especially of a specified kind; sometimes used as a combining term.
  • born - adj. brought into existence;  being talented through inherited qualities;  noun British nuclear physicist (born in Germany) honored for his contributions to quantum mechanics (1882-1970).
  • boss - adj. exceptionally good;  noun a person responsible for hiring workers;  a person who exercises control and makes decisions;  a circular rounded projection or protuberance;  a person who exercises control over workers;  a leader in a political party who controls votes and dictates appointments;  verb raise in a relief.
  • boston - noun state capital and largest city of Massachusetts; a major center for banking and financial services.
  • both - adj. (used with count nouns) two considered together; the two.
  • botox - noun a neurotoxin (trade name Botox) that is used clinically in small quantities to treat strabismus and facial spasms and other neurological disorders characterized by abnormal muscle contractions; is also used by cosmetic surgeons to smooth frown lines temporarily.
  • bottle - noun a glass or plastic vessel used for storing drinks or other liquids; typically cylindrical without handles and with a narrow neck that can be plugged or capped;  a vessel fitted with a flexible teat and filled with milk or formula; used as a substitute for breast feeding infants and very young children;  the quantity contained in a bottle;  verb put into bottles;  store (liquids or gases) in bottles.
  • bottom - adj. the lowest rank;  situated at the bottom or lowest position;  noun a cargo ship;  the lower side of anything;  the lowest part of anything;  the second half of an inning; while the home team is at bat;  the fleshy part of the human body that you sit on;  a depression forming the ground under a body of water;  low-lying alluvial land near a river;  verb strike the ground, as with a ship's bottom;  provide with a bottom or a seat;  come to understand.
  • botulinum - noun anaerobic bacterium producing botulin the toxin that causes botulism.
  • boulder - noun a town in north central Colorado; Rocky Mountains resort center and university town;  a large smooth mass of rock detached from its place of origin.
  • bounce - noun the quality of a substance that is able to rebound; rebounding from an impact (or series of impacts);  a light, self-propelled movement upwards or forwards;  verb hit something so that it bounces;  eject from the premises;  spring back; spring away from an impact;  move up and down repeatedly;  leap suddenly; refuse to accept and send back;  come back after being refused.
  • bound - adj. confined by bonds;  secured with a cover or binding; often used as a combining form;  (usually followed by `to') governed by fate;  confined in the bowels;  held with another element, substance or material in chemical or physical union;  headed or intending to head in a certain direction; often used as a combining form as in `college-bound students';  bound by an oath;  bound by contract;  covered or wrapped with a bandage;  noun a light, self-propelled movement upwards or forwards;  the greatest possible degree of something;  the line or plane indicating the limit or extent of something;  a line determining the limits of an area;  verb form the boundary of; be contiguous to;  place limits on (extent or access); spring back; spring away from an impact;  move forward by leaps and bounds.
  • boundary - noun the line or plane indicating the limit or extent of something;  a line determining the limits of an area;  the greatest possible degree of something.
  • bounded - adj. having the limits or boundaries established.
  • bovine - adj. dull and slow-moving and stolid; like an ox;  of or relating to or belonging to the genus Bos (cattle);  noun any of various members of the genus Bos.
  • bowel - noun the part of the alimentary canal between the stomach and the anus.
  • bowing - adj. showing an excessively deferential manner;  nounmanaging the bow in playing a stringed instrument;  bending the head or body or knee as a sign of reverence or submission or shame.
  • bowl - noun a dish that is round and open at the top for serving foods;  a round vessel that is open at the top; used for holding fruit or liquids or for serving food;  a small round container that is open at the top for holding tobacco;  a wooden ball (with flattened sides so that it rolls on a curved course) used in the game of lawn bowling;  the quantity contained in a bowl;  a concave shape with an open top;  a large ball with finger holes used in the sport of bowling;  a large structure for open-air sports or entertainments;  verb engage in the sport of bowling;  roll (a ball).
  • bowman - noun a person who is expert in the use of a bow and arrow.
  • box - noun a blow with the hand (usually on the ear);  a (usually rectangular) container; may have a lid;  separate partitioned area in a public place for a few people;  private area in a theater or grandstand where a small group can watch the performance;  the driver's seat on a coach;  any one of several designated areas on a ball field where the batter or catcher or coaches are positioned;  evergreen shrubs or small trees;  the quantity contained in a box;  a rectangular drawing;  a predicament from which a skillful or graceful escape is impossible; verb engage in a boxing match;  hit with the fist;  put into a box.
  • boxing - noun fighting with the fists;  the enclosure of something in a package or box.
  • boxy - adj. resembling a box in rectangularity.
  • boy - noun (ethnic slur) offensive and disparaging term for Black man;  a friendly informal reference to a grown man;  a youthful male person;  a male human offspring.
  • boyfriend - noun a man who is the lover of a girl or young woman.
  • boyle - noun Irish chemist who established that air has weight and whose definitions of chemical elements and chemical reactions helped to dissociate chemistry from alchemy (1627-1691);  United States writer (1902-1992).
  • bph - noun enlarged prostate; appears to be part of the natural aging process.
  • bpm - noun the pace of music measured by the number of beats occurring in 60 seconds.
  • brace - noun a structural member used to stiffen a framework;  a carpenter's tool having a crank handle for turning and a socket to hold a bit for boring;  an appliance that corrects dental irregularities; a support that steadies or strengthens something else;  elastic straps that hold trousers up (usually used in the plural);  a rope on a square-rigged ship that is used to swing a yard about and secure it;  either of two punctuation marks ({ or }) used to enclose textual material;  a set of two similar things considered as a unit;  two items of the same kind;  verb support by bracing;  support or hold steady and make steadfast, with or as if with a brace;  prepare (oneself) for something unpleasant or difficult;  cause to be alert and energetic.
  • braces - noun an appliance that corrects dental irregularities.
  • brachial - adj. of or relating to an arm.
  • brachium - noun (biology) a branching or armlike part of an animal.
  • bradycardia - noun abnormally slow heartbeat.
  • brain - noun that part of the central nervous system that includes all the higher nervous centers; enclosed within the skull; continuous with the spinal cord;  mental ability;  the brain of certain animals used as meat;  that which is responsible for one's thoughts and feelings; the seat of the faculty of reason;  someone who has exceptional intellectual ability and originality;  verb kill by smashing someone's skull;  hit on the head.
  • brain-stem - noun the part of the brain continuous with the spinal cord and comprising the medulla oblongata and pons and midbrain and parts of the hypothalamus.
  • braincase - noun the part of the skull that encloses the brain.
  • brainstem - noun the part of the brain continuous with the spinal cord and comprising the medulla oblongata and pons and midbrain and parts of the hypothalamus.
  • brake - noun a restraint used to slow or stop a vehicle;  an area thickly overgrown usually with one kind of plant;  any of various ferns of the genus Pteris having pinnately compound leaves and including several popular houseplants;  large coarse fern often several feet high; essentially weed ferns; cosmopolitan;  verb cause to stop by applying the brakes;  stop travelling by applying a brake.
  • branch - noun an administrative division of some larger or more complex organization;  a stream or river connected to a larger one;  a division of a stem, or secondary stem arising from the main stem of a plant;  a part of a forked or branching shape;  any projection that is thought to resemble a human arm;  a natural consequence of development;  verb divide into two or more branches so as to form a fork;  grow and send out branches or branch-like structures.
  • branched - adj. having branches;  resembling a fork; divided or separated into two branches.
  • branching - adj. resembling the branches of a tree;  having branches;  noun the act of branching out or dividing into branches.
  • branchlike - adj. resembling branches.
  • brand - noun a recognizable kind;  identification mark on skin, made by burning;  a piece of wood that has been burned or is burning;  a cutting or thrusting weapon that has a long metal blade and a hilt with a hand guard;  a symbol of disgrace or infamy;  a name given to a product or service;  verb burn with a branding iron to indicate ownership; of animals;  mark or expose as infamous;  to accuse or condemn or openly or formally or brand as disgraceful.
  • breach - noun a failure to perform some promised act or obligation; an opening (especially a gap in a dike or fortification);  a personal or social separation (as between opposing factions);  verb make an opening or gap in;  act in disregard of laws, rules, contracts, or promises.
  • bread - noun food made from dough of flour or meal and usually raised with yeast or baking powder and then baked;  informal terms for money;  verb cover with bread crumbs.
  • break - noun an escape from jail;  a sudden dash;  an act of delaying or interrupting the continuity;  (tennis) a score consisting of winning a game when your opponent was serving;  the opening shot that scatters the balls in billiards or pool;  an abrupt change in the tone or register of the voice (as at puberty or due to emotion);  an unexpected piece of good luck;  the occurrence of breaking;  any frame in which a bowler fails to make a strike or spare;  the act of breaking something;  a pause from doing something (as work);  a personal or social separation (as between opposing factions);  some abrupt occurrence that interrupts an ongoing activity;  (geology) a crack in the earth's crust resulting from the displacement of one side with respect to the other;  breaking of hard tissue such as bone;  a time interval during which there is a temporary cessation of something;  verb weaken or destroy in spirit or body;  diminish or discontinue abruptly;  fall sharply;  be broken in;  crack; of the male voice in puberty;  render inoperable or ineffective;  become separated into pieces or fragments;  destroy the integrity of; usually by force; cause to separate into pieces or fragments;  happen;  prevent completion;  change suddenly from one tone quality or register to another;  come into being;  find the solution or key to;  find a flaw in; undergo breaking;  interrupt the flow of current in;  be released or become known; of news;  pierce or penetrate;  become punctured or penetrated;  break a piece from a whole;  go to pieces;  ruin completely;  separate from a clinch, in boxing;  make the opening shot that scatters the balls;  destroy the completeness of a set of related items;  exchange for smaller units of money;  force out or release suddenly and often violently something pent up;  curl over and fall apart in surf or foam, of waves;  emerge from the surface of a body of water;  scatter or part;  make a rupture in the ranks of the enemy or one's own by quitting or fleeing;  move away or escape suddenly;  change directions suddenly;  invalidate by judicial action; interrupt a continued activity;  cause the failure or ruin of;  happen or take place;  come forth or begin from a state of latency;  give up; cause to give up a habit;  vary or interrupt a uniformity or continuity; come to an end;  fracture a bone of;  make submissive, obedient, or useful;  become fractured; break or crack on the surface only; terminate;  lessen in force or effect;  stop operating or functioning; cease an action temporarily;  make known to the public information that was previously known only to a few people or that was meant to be kept a secret;  surpass in excellence;  do a break dance;  break down, literally or metaphorically;  reduce to bankruptcy;  assign to a lower position; reduce in rank;  discontinue an association or relation; go different ways;  act in disregard of laws, rules, contracts, or promises;  enter someone's property in an unauthorized manner, usually with the intent to steal or commit a violent act;  fail to agree with; be in violation of; as of rules or patterns.
  • breakdown - noun an analysis into mutually exclusive categories;  a cessation of normal operation;  a mental or physical breakdown;  the act of disrupting an established order so it fails to continue.
  • breakfast - noun the first meal of the day (usually in the morning); verb eat an early morning meal;  provide breakfast for.
  • breaking - adj. (of waves) curling over and crashing into surf or spray;  noun the act of breaking something.
  • breakup - noun the termination or disintegration of a relationship (between persons or nations);  coming apart.
  • breast - noun the front part of the trunk from the neck to the abdomen;  either of two soft fleshy milk-secreting glandular organs on the chest of a woman;  meat carved from the breast of a fowl; verb reach the summit;  meet at breast level;  confront bodily.
  • breastbone - noun the flat bone that articulates with the clavicles and the first seven pairs of ribs.
  • breastfeed - verb give suck to.
  • breath - noun the process of taking in and expelling air during breathing;  a slight movement of the air;  the air that is inhaled and exhaled in respiration;  a short respite;  an indirect suggestion.
  • breathe - verb draw air into, and expel out of, the lungs;  reach full flavor by absorbing air and being let to stand after having been uncorked;  manifest or evince;  utter or tell;  impart as if by breathing; be alive;  allow the passage of air through;  expel (gases or odors); take a short break from one's activities in order to relax.
  • breathing - adj. passing or able to pass air in and out of the lungs normally; sometimes used in combination;  noun the bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation.
  • breech - noun opening in the rear of the barrel of a gun where bullets can be loaded.
  • brevity - noun the attribute of being brief or fleeting;  the use of brief expressions.
  • brewer - noun the owner or manager of a brewery;  someone who brews beer or ale from malt and hops and water.
  • brick - noun rectangular block of clay baked by the sun or in a kiln; used as a building or paving material;  a good fellow; helpful and trustworthy.
  • bridge - noun any of various card games based on whist for four players;  a structure that allows people or vehicles to cross an obstacle such as a river or canal or railway etc.;  an upper deck where a ship is steered and the captain stands;  the link between two lenses; rests on nose;  a denture anchored to teeth on either side of missing teeth;  a wooden support that holds the strings up;  a circuit consisting of two branches (4 arms arranged in a diamond configuration) across which a meter is connected;  the hard ridge that forms the upper part of the nose;  something resembling a bridge in form or function;  verb make a bridge across;  cross over on a bridge; connect or reduce the distance between.
  • bridges - noun United States labor leader who organized the longshoremen (1901-1990).
  • brief - adj. concise and succinct;  of short duration or distance;  (of clothing) very short;  noun a condensed written summary or abstract; a document stating the facts and points of law of a client's case; verb give essential information to someone.
  • briefly - adv. for a short time;  in a concise manner; in a few words.
  • bright - adj. full or promise;  having lots of light either natural or artificial;  emitting or reflecting light readily or in large amounts; having striking color;  abounding with sunlight;  splendid; characterized by happiness or gladness;  characterized by quickness and ease in learning;  made smooth and bright by or as if by rubbing; reflecting a sheen or glow;  clear and sharp and ringing;  not made dim or less bright;  adv. with brightness.
  • brightness - noun the location of a visual perception along a continuum from black to white;  intelligence as manifested in being quick and witty;  the quality of being luminous; emitting or reflecting light.
  • brim - noun a circular projection that sticks outward from the crown of a hat;  the top edge of a vessel or other container;  verb fill as much as possible;  be completely full.
  • bring - verb bring into a different state;  induce or persuade;  go or come after and bring or take back;  be accompanied by;  cause to come into a particular state or condition;  cause to happen or to occur as a consequence;  attract the attention of;  take something or somebody with oneself somewhere;  advance or set forth in court;  be sold for a certain price;  bestow a quality on.
  • bringing - noun the act of delivering or distributing something (as goods or mail).
  • britain - noun a monarchy in northwestern Europe occupying most of the British Isles; divided into England and Scotland and Wales and Northern Ireland.
  • british - adj. of or relating to or characteristic of Great Britain or its people or culture;  noun the people of Great Britain.
  • brittle - adj. having little elasticity; hence easily cracked or fractured or snapped;  (of metal or glass) not annealed and consequently easily cracked or fractured;  lacking warmth and generosity of spirit; noun caramelized sugar cooled in thin sheets.
  • broad - adj. showing or characterized by broad-mindedness;  lacking subtlety; obvious;  not detailed or specific;  being at a peak or culminating point;  (of speech) heavily and noticeably regional;  very large in expanse or scope;  broad in scope or content;  having great (or a certain) extent from one side to the other;  noun slang term for a woman.
  • broadening - noun the action of making broader;  the act of making something wider;  an increase in width.
  • broadly - adv. without regard to specific details or exceptions;  in a wide fashion.
  • broca - noun French anthropologist who studied the craniums and brains of different races of people; remembered for his discovery that articulate speech depends on an area of the brain now known as Broca's area (1824-1880).
  • broccoli - noun branched green undeveloped flower heads;  plant with dense clusters of tight green flower buds.
  • broke - adj. lacking funds.
  • broken - adj. physically and forcibly separated into pieces or cracked or split;  (especially of promises or contracts) having been violated or disregarded;  not continuous in space, time, or sequence or varying abruptly;  lacking a part or parts;  discontinuous;  out of working order (`busted' is an informal substitute for `broken'); destroyed financially;  weakened and infirm;  thrown into a state of disarray or confusion;  imperfectly spoken or written;  subdued or brought low in condition or status;  topographically very uneven; tamed or trained to obey.
  • bronchial - adj. relating to or associated with the bronchi.
  • bronchiole - noun any of the smallest bronchial ducts; ending in alveoli.
  • bronchodilator - noun a drug that relaxes and dilates the bronchial passageways and improves the passages of air into the lungs.
  • bronchospasm - noun a spasm of the bronchi that makes exhalation difficult and noisy; associated with asthma and bronchitis.
  • bronchus - noun either of the two main branches of the trachea.
  • bronze - adj. of the color of bronze;  made from or consisting of bronze;  noun a sculpture made of bronze;  an alloy of copper and tin and sometimes other elements; also any copper-base alloy containing other elements in place of tin;  verb give the color and appearance of bronze to something;  get a tan, from wind or sun.
  • brother - noun a male with the same parents as someone else; (Roman Catholic Church) a title given to a monk and used as form of address;  a male person who is a fellow member (of a fraternity or religion of other group);  used as a term of address for those male persons engaged in the same movement;  a close friend who accompanies his buddies in their activities.
  • brow - noun the part of the face above the eyes;  the arch of hair above each eye;  the peak of a hill.
  • brown - adj. (of skin) deeply suntanned;  of a color similar to that of wood or earth;  noun an orange of low brightness and saturation; abolitionist who was hanged after leading an unsuccessful raid at Harper's Ferry, Virginia (1800-1858);  Scottish botanist who first observed the movement of small particles in fluids now known a Brownian motion (1773-1858);  a university in Rhode Island;  verb fry in a pan until it changes color.
  • bruce - noun King of Scotland from 1306 to 1329; defeated the English army under Edward II at Bannockburn and gained recognition of Scottish independence (1274-1329);  Australian physician and bacteriologist who described the bacterium that causes undulant fever or brucellosis (1855-1931).
  • bruising - adj. brutally forceful and compelling;  causing mental or emotional injury.
  • brush - noun contact with something dangerous or undesirable;  the act of brushing your hair;  the act of brushing your teeth;  a minor short-term fight;  an implement that has hairs or bristles firmly set into a handle;  conducts current between rotating and stationary parts of a generator or motor;  momentary contact;  a dense growth of bushes;  verb remove with or as if with a brush;  touch lightly and briefly;  rub with a brush, or as if with a brush;  clean with a brush; cover by brushing;  sweep across or over.
  • brussels - noun the capital and largest city of Belgium; seat of the North Atlantic Treaty Organization.
  • bryan - noun a town of east central Texas;  United States lawyer and politician who advocated free silver and prosecuted John Scopes (1925) for teaching evolution in a Tennessee high school (1860-1925).
  • bubble - noun a dome-shaped covering made of transparent glass or plastic;  an impracticable and illusory idea;  a hollow globule of gas (e.g., air or carbon dioxide);  a speculative scheme that depends on unstable factors that the planner cannot control;  verb form, produce, or emit bubbles;  expel gas from the stomach;  flow in an irregular current with a bubbling noise.
  • buccal - adj. toward the inside of the cheek;  lying within the mouth; of or relating to or toward the cheek.
  • buckle - noun fastener that fastens together two ends of a belt or strap; often has loose prong;  a shape distorted by twisting or folding; verb fold or collapse;  fasten with a buckle or buckles;  bend out of shape, as under pressure or from heat.
  • bud - noun a partially opened flower;  a swelling on a plant stem consisting of overlapping immature leaves or petals;  verb start to grow or develop;  develop buds.
  • budding - adj. beginning to develop;  noun reproduction of some unicellular organisms (such as yeasts) by growth and specialization followed by the separation by constriction of a part of the parent.
  • buffalo - noun meat from an American bison;  a city on Lake Erie in western New York (near Niagara Falls);  any of several Old World animals resembling oxen including, e.g., water buffalo; Cape buffalo; large shaggy-haired brown bison of North American plains;  verbintimidate or overawe.
  • buffer - noun a cushion-like device that reduces shock due to contact;  a power tool used to buff surfaces;  (computer science) a part of RAM used for temporary storage of data that is waiting to be sent to a device; used to compensate for differences in the rate of flow of data between components of a computer system;  an ionic compound that resists changes in its pH;  an implement consisting of soft material mounted on a block; used for polishing (as in manicuring);  an inclined metal frame at the front of a locomotive to clear the track;  verb add a buffer (a solution);  protect from impact.
  • bug - noun general term for any insect or similar creeping or crawling invertebrate;  a small hidden microphone; for listening secretly;  a fault or defect in a system or machine;  a minute life form (especially a disease-causing bacterium); the term is not in technical use;  insects with sucking mouthparts and forewings thickened and leathery at the base; usually show incomplete metamorphosis;  verbannoy persistently;  tap a telephone or telegraph wire to get information.
  • build - noun constitution of the human body;  alternative names for the body of a human being;  verb develop and grow;  improve the cleansing action of;  found or ground;  build or establish something abstract;  be engaged in building;  give form to, according to a plan; order, supervise, or finance the construction of;  form or accumulate steadily;  bolster or strengthen;  make by combining materials and parts.
  • build up - verb enlarge, develop, or increase by degrees or in stages;  change the use of and make available or usable;  form or accumulate steadily;  bolster or strengthen;  prepare oneself for a military confrontation.
  • building - noun a structure that has a roof and walls and stands more or less permanently in one place;  the occupants of a building; the act of constructing something;  the commercial activity involved in repairing old structures or constructing new ones.
  • buildup - noun the act of building up an accumulation;  highly favorable publicity and praise;  the result of the process of accumulation.
  • built - adj. (used of soaps or cleaning agents) having a substance (an abrasive or filler) added to increase effectiveness;  well or attractively formed with respect to physique;  formed by fitting or joining components together.
  • built-in - adj. existing as an essential constituent or characteristic.
  • bulb - noun a rounded part of a cylindrical instrument (usually at one end);  a rounded dilation or expansion in a canal or vessel or organ; a modified bud consisting of a thickened globular underground stem serving as a reproductive structure;  electric lamp consisting of a transparent or translucent glass housing containing a wire filament (usually tungsten) that emits light when heated by electricity;  lower or hindmost part of the brain; continuous with spinal cord; (`bulb' is an old term for medulla oblongata).
  • bulbar - adj. involving the medulla oblongata.
  • bulbous - adj. curving outward;  shaped like a bulb.
  • bulge - noun something that bulges out or is protuberant or projects from its surroundings;  verb cause to bulge or swell outwards;  swell or protrude outwards;  bulge out; form a bulge outward, or be so full as to appear to bulge;  bulge outward.
  • bulging - adj. curving or bulging outward;  curving outward.
  • bulimia - noun pathologically insatiable hunger (especially when caused by brain lesions);  a disorder of eating seen among young women who go on eating binges and then feel guilt and depression and self-condemnation.
  • bulk - noun the property possessed by a large mass;  the property of something that is great in magnitude;  the property resulting from being or relating to the greater in number of two parts; the main part; verb stick out or up;  cause to bulge or swell outwards.
  • bulky - adj. of large size for its weight.
  • bullet - noun a projectile that is fired from a gun;  (baseball) a pitch thrown with maximum velocity;  a high-speed passenger train.
  • bump - noun a lump on the body caused by a blow;  an impact (as from a collision);  something that bulges out or is protuberant or projects from its surroundings;  verb knock against with force or violence;  dance erotically or dance with the pelvis thrust forward; remove or force from a position of dwelling previously occupied; come upon, as if by accident; meet with;  assign to a lower position; reduce in rank.
  • bumpy - adj. covered with or full of bumps;  causing or characterized by jolts and irregular movements.
  • bunch - noun any collection in its entirety;  a grouping of a number of similar things;  an informal body of friends;  verb gather or cause to gather into a cluster;  form into a bunch.
  • bundle - noun a package of several things tied together for carrying or storing;  a collection of things wrapped or boxed together;  a large sum of money (especially as pay or profit);  verb sleep fully clothed in the same bed with one's betrothed;  make into a bundle;  compress into a wad;  gather or cause to gather into a cluster.
  • bundling - noun the act of shoving hastily;  the act of binding something into a bundle;  a onetime custom during courtship of unmarried couples occupying the same bed without undressing.
  • bungee - noun an elasticized rope.
  • bunion - noun a painful swelling of the bursa of the first joint of the big toe.
  • bureau - noun furniture with drawers for keeping clothes;  an administrative unit of government.
  • burgundy - noun a dark purplish-red to blackish-red color;  red table wine from the Burgundy region of France (or any similar wine made elsewhere);  a former province of eastern France that is famous for its wines.
  • burn - noun damage inflicted by fire;  a place or area that has been burned (especially on a person's body);  an injury caused by exposure to heat or chemicals or radiation;  pain that feels hot as if it were on fire;  a browning of the skin resulting from exposure to the rays of the sun;  verb burn with heat, fire, or radiation;  undergo combustion;  cause to undergo combustion;  destroy by fire;  feel strong emotion, especially anger or passion;  feel hot or painful; spend (significant amounts of money);  burn at the stake;  cause to burn or combust;  shine intensely, as if with heat;  get a sunburn by overexposure to the sun;  burn, sear, or freeze (tissue) using a hot iron or electric current or a caustic agent;  use up (energy);  create by duplicating data;  cause a sharp or stinging pain or discomfort.
  • burned - adj. ruined by overcooking;  destroyed or badly damaged by fire;  injured by intense heat (as of fire or the sun);  treated by heating to a high temperature but below the melting or fusing point; having undergone oxidation;  hardened by subjecting to intense heat.
  • burning - adj. consuming fuel; used in combination;  intensely hot;  of immediate import;  producing or having a painfully hot sensation; lighted up by or as by fire or flame;  characterized by intense emotion;  noun the act of burning something;  a form of torture in which cigarettes or cigars or other hot implements are used to burn the victim's skin;  execution by fire;  execution by electricity;  a process in which a substance reacts with oxygen to give heat and light;  pain that feels hot as if it were on fire.
  • burns - noun celebrated Scottish poet (1759-1796);  United States comedian and film actor (1896-1996).
  • burrito - noun a flour tortilla folded around a filling.
  • burrow - noun a hole in the ground made by an animal for shelter; verb move through by or as by digging.
  • bursa - noun a small fluid-filled sac located between movable parts of the body especially at joints;  a city in northwestern Turkey.
  • bursitis - noun inflammation of a bursa; frequently in the shoulder.
  • burst - adj. suddenly and violently broken open especially from internal pressure (`busted' is an informal term for `burst');  noun a sudden flurry of activity (often for no obvious reason);  the act of exploding or bursting something;  rapid simultaneous discharge of firearms;  a sudden violent happening;  verb break open or apart suddenly;  break open or apart suddenly and forcefully;  emerge suddenly;  move suddenly, energetically, or violently;  burst outward, usually with noise;  force out or release suddenly and often violently something pent up;  cause to burst;  be in a state of movement or action.
  • business - noun incidental activity performed by an actor for dramatic effect;  the volume of commercial activity;  a rightful concern or responsibility;  an immediate objective;  business concerns collectively;  a commercial or industrial enterprise and the people who constitute it;  the principal activity in your life that you do to earn money;  the activity of providing goods and services involving financial and commercial and industrial aspects;  customers collectively.
  • busy - adj. crowded with or characterized by much activity;  actively or fully engaged or occupied;  (of facilities such as telephones or lavatories) unavailable for use by anyone else or indicating unavailability; (`engaged' is a British term for a busy telephone line); overcrowded or cluttered with detail;  intrusive in a meddling or offensive manner;  verb keep busy with.
  • but - adv. and nothing more.
  • butter - noun an edible emulsion of fat globules made by churning milk or cream; for cooking and table use;  a fighter who strikes the opponent with his head;  verb spread butter on.
  • butterfly - noun a swimming stroke in which the arms are thrown forward together out of the water while the feet kick up and down; diurnal insect typically having a slender body with knobbed antennae and broad colorful wings;  verb cut and spread open, as in preparation for cooking;  flutter like a butterfly;  talk or behave amorously, without serious intentions.
  • butterfly-shaped - adj. shaped like a butterfly.
  • buttock - noun either of the two large fleshy masses of muscular tissue that form the human rump.
  • buttocks - noun the fleshy part of the human body that you sit on.
  • button - noun a round fastener sewn to shirts and coats etc to fit through buttonholes;  any artifact that resembles a button;  a round flat badge displaying information and suitable for pinning onto a garment;  any of various plant parts that resemble buttons;  an electrical switch operated by pressing;  a device that when pressed will release part of a mechanism;  a female sexual organ homologous to the penis;  verb fasten with buttons;  provide with buttons.
  • buy - noun an advantageous purchase;  verb accept as true;  obtain by purchase; acquire by means of a financial transaction;  acquire by trade or sacrifice or exchange;  be worth or be capable of buying; make illegal payments to in exchange for favors or influence.
  • by - adv. so as to pass a given point;  in reserve; not for immediate use.
  • bypass - noun a road that takes traffic around the edge of a town;  a surgically created shunt (usually around a damaged part);  a conductor having low resistance in parallel with another device to divert a fraction of the current;  verb avoid something unpleasant or laborious.
  • byproduct - noun a product made during the manufacture of something else;  a secondary and sometimes unexpected consequence.
  • bystander - noun a nonparticipant spectator.
  • c - noun the 3rd letter of the Roman alphabet;  (music) the keynote of the scale of C major;  a general-purpose programing language closely associated with the UNIX operating system;  street names for cocaine;  a unit of electrical charge equal to the amount of charge transferred by a current of 1 ampere in 1 second;  a degree on the centigrade scale of temperature;  an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds; a base found in DNA and RNA and derived from pyrimidine; pairs with guanine;  one of the four nucleotides used in building DNA; all four nucleotides have a common phosphate group and a sugar (ribose);  the speed at which light travels in a vacuum; the constancy and universality of the speed of light is recognized by defining it to be exactly 299,792,458 meters per second.
  • ca - noun a state in the western United States on the Pacific; the 3rd largest state; known for earthquakes;  a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals.
  • cabbage - noun any of various types of cabbage;  any of various cultivars of the genus Brassica oleracea grown for their edible leaves or flowers;  informal terms for money;  verb make off with belongings of others.
  • cabin - noun the enclosed compartment of an aircraft or spacecraft where passengers are carried;  small room on a ship or boat where people sleep;  a small house built of wood; usually in a wooded area; verb confine to a small space, such as a cabin.
  • cabinet - noun a piece of furniture resembling a cupboard with doors and shelves and drawers; for storage or display;  housing for electronic instruments, as radio or television;  a storage compartment for clothes and valuables; usually it has a lock;  persons appointed by a head of state to head executive departments of government and act as official advisers.
  • cable - noun a very strong thick rope made of twisted hemp or steel wire;  a television system that transmits over cables;  a conductor for transmitting electrical or optical signals or electric power;  a telegram sent abroad;  a nautical unit of depth;  television that is transmitted over cable directly to the receiver;  verb send cables, wires, or telegrams;  fasten with a cable.
  • cadaver - noun the dead body of a human being.
  • caesarian - adj. of or relating to or in the manner of Julius Caesar; relating to abdominal delivery;  noun the delivery of a fetus by surgical incision through the abdominal wall and uterus (from the belief that Julius Caesar was born that way).
  • caffeine - noun a bitter alkaloid found in coffee and tea that is responsible for their stimulating effects.
  • cage - noun an enclosure made or wire or metal bars in which birds or animals can be kept;  the net that is the goal in ice hockey;  United States composer of avant-garde music (1912-1992);  something that restricts freedom as a cage restricts movement;  a movable screen placed behind home base to catch balls during batting practice;  verbconfine in a cage.
  • cake - noun a block of solid substance (such as soap or wax);  made from or based on a mixture of flour and sugar and eggs;  small flat mass of chopped food;  verb form a coat over.
  • calcaneal - adj. relating to the heel bone or heel.
  • calcaneus - noun the largest tarsal bone; forms the human heel.
  • calcification - noun a process that impregnates something with calcium (or calcium salts);  an inflexible and unchanging state;  tissue hardened by deposition of lime salts.
  • calcify - verb convert into lime;  turn into lime; become calcified; become impregnated with calcium salts;  become inflexible and unchanging.
  • calcitonin - noun thyroid hormone that tends to lower the level of calcium in the blood plasma and inhibit resorption of bone.
  • calcium - noun a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals.
  • calcium phosphate - noun a phosphate of calcium; a main constituent of animal bones.
  • calculate - verb make a mathematical calculation or computation; judge to be probable;  specifically design a product, event, or activity for a certain public;  have faith or confidence in;  predict in advance; keep an account of.
  • calculated - adj. carefully thought out in advance.
  • calculating - adj. used of persons.
  • calculation - noun the procedure of calculating; determining something by mathematical or logical methods;  planning something carefully and intentionally;  problem solving that involves numbers or quantities.
  • calf - noun young of domestic cattle;  young of various large placental mammals e.g. whale or giraffe or elephant or buffalo;  the muscular back part of the shank;  fine leather from the skin of a calf.
  • california - noun a state in the western United States on the Pacific; the 3rd largest state; known for earthquakes.
  • caliper - noun an instrument for measuring the distance between two points (often used in the plural);  verb measure the diameter of something with calipers.
  • call - noun (sports) the decision made by an umpire or referee;  a visit in an official or professional capacity;  a brief social visit;  a special disposition (as if from a divine source) to pursue a particular course;  a telephone connection;  an instruction that interrupts the program being executed;  a request;  a demand especially in the phrase "the call of duty";  a demand for a show of hands in a card game;  the option to buy a given stock (or stock index or commodity future) at a given price before a given date;  the characteristic sound produced by a bird;  a loud utterance; often in protest or opposition;  a demand by a broker that a customer deposit enough to bring his margin up to the minimum requirement;  verb rouse somebody from sleep with a call;  consider or regard as being;  challenge the sincerity or truthfulness of;  utter in a loud voice or announce;  order, summon, or request for a specific duty or activity, work, role;  order or request or give a command for;  lure by imitating the characteristic call of an animal;  get or try to get into communication (with someone) by telephone;  order, request, or command to come;  declare in the capacity of an umpire or referee;  challenge (somebody) to make good on a statement; charge with or censure for an offense;  require the presentation of for redemption before maturation;  ascribe a quality to or give a name of a common noun that reflects a quality; utter a characteristic note or cry;  send a message or attempt to reach someone by radio, phone, etc.; make a signal to in order to transmit a message;  read aloud to check for omissions or absentees;  indicate a decision in regard to;  give the calls (to the dancers) for a square dance;  demand payment of (a loan);  call a meeting; invite or command to meet;  make a stop in a harbour;  stop or postpone because of adverse conditions, such as bad weather; utter a sudden loud cry;  make a prediction about; tell in advance; assign a specified (usually proper) proper name to;  make a demand, as for a card or a suit or a show of hands;  pay a brief visit;  greet, as with a prescribed form, title, or name.
  • called - adj. known or spoken of as;  given or having a specified name.
  • calling - noun the particular occupation for which you are trained.
  • callus - noun (botany) an isolated thickening of tissue, especially a stiff protuberance on the lip of an orchid;  bony tissue formed during the healing of a fractured bone;  an area of skin that is thick or hard from continual pressure or friction (as the sole of the foot);  verb form a callus or calluses;  cause a callus to form on.
  • caloric - adj. of or relating to calories in food;  relating to or associated with heat.
  • calorie - noun unit of heat defined as the quantity of heat required to raise the temperature of 1 gram of water by 1 degree centigrade at atmospheric pressure;  a unit of heat equal to the amount of heat required to raise the temperature of one kilogram of water by one degree at one atmosphere pressure; used by nutritionists to characterize the energy-producing potential in food.
  • calvaria - noun the dome of the skull.
  • calvin - noun Swiss theologian (born in France) whose tenets (predestination and the irresistibility of grace and justification by faith) defined Presbyterianism (1509-1564);  United States chemist noted for discovering the series of chemical reactions in photosynthesis (1911-).
  • camera - noun equipment for taking photographs (usually consisting of a lightproof box with a lens at one end and light-sensitive film at the other);  television equipment consisting of a lens system that focuses an image on a photosensitive mosaic that is scanned by an electron beam.
  • camp - adj. providing sophisticated amusement by virtue of having artificially (and vulgarly) mannered or banal or sentimental qualities; noun temporary living quarters specially built by the army for soldiers;  temporary lodgings in the country for travelers or vacationers;  a prison for forced laborers;  a site where care and activities are provided for children during the summer months; shelter for persons displaced by war or political oppression or for religious beliefs;  something that is considered amusing not because of its originality but because of its unoriginality;  a group of people living together in a camp;  an exclusive circle of people with a common purpose;  verb give an artificially banal or sexual quality to; establish or set up a camp;  live in or as if in a tent.
  • campbell - noun United States mythologist (1904-1987).
  • campfire - noun a small outdoor fire for warmth or cooking (as at a camp).
  • campus - noun a field on which the buildings of a university are situated.
  • can - noun airtight sealed metal container for food or drink or paint etc.;  a buoy with a round bottom and conical top;  the quantity contained in a can;  a room or building equipped with one or more toilets;  a plumbing fixture for defecation and urination;  the fleshy part of the human body that you sit on;  verb preserve in a can or tin; terminate the employment of.
  • canada - noun a nation in northern North America; the French were the first Europeans to settle in mainland Canada.
  • canal - noun long and narrow strip of water made for boats or for irrigation;  (astronomy) an indistinct surface feature of Mars once thought to be a system of channels; they are now believed to be an optical illusion;  a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance;  verb provide (a city) with a canal.
  • canaliculus - noun a small canal or duct as in some bones and parts of plants.
  • cancel - noun a notation cancelling a previous sharp or flat;  verbmake invalid for use;  declare null and void; make ineffective; postpone indefinitely or annul something that was scheduled;  make up for;  remove or make invisible.
  • cancellous - adj. having an open or latticed or porous structure.
  • cancer - noun type genus of the family Cancridae;  the fourth sign of the zodiac; the sun is in this sign from about June 21 to July 22;  a small zodiacal constellation in the northern hemisphere; between Leo and Gemini;  (astrology) a person who is born while the sun is in Cancer;  any malignant growth or tumor caused by abnormal and uncontrolled cell division; it may spread to other parts of the body through the lymphatic system or the blood stream.
  • cancerous - adj. like a cancer; an evil that grows and spreads; relating to or affected with cancer.
  • candida - noun any of the yeastlike imperfect fungi of the genus Candida.
  • candidate - noun someone who is considered for something (for an office or prize or honor etc.);  a politician who is running for public office.
  • candy - noun a rich sweet made of flavored sugar and often combined with fruit or nuts;  verb coat with something sweet, such as a hard sugar glaze.
  • canine - adj. of or relating to or characteristic of members of the family Canidae;  of or relating to a pointed conical tooth;  noun any of various fissiped mammals with nonretractile claws and typically long muzzles;  one of the four pointed conical teeth (two in each jaw) located between the incisors and the premolars.
  • canned - adj. sealed in a can or jar;  recorded for broadcast.
  • cannon - noun lower part of the leg extending from the hock to the fetlock in hoofed mammals;  a large artillery gun that is usually on wheels;  heavy automatic gun fired from an airplane;  (Middle Ages) a cylindrical piece of armor plate to protect the arm;  heavy gun fired from a tank;  a shot in billiards in which the cue ball contacts one object ball and then the other;  verb fire a cannon;  make a cannon.
  • cap - noun a tight-fitting headdress;  a top (as for a bottle); something serving as a cover or protection;  a fruiting structure resembling an umbrella that forms the top of a stalked fleshy fungus such as a mushroom;  the upper part of a column that supports the entablature;  dental appliance consisting of an artificial crown for a tooth;  a mechanical or electrical explosive device or a small amount of explosive; can be used to initiate the reaction of a disrupting explosive;  an upper limit on what is allowed;  verb restrict the number or amount of;  lie at the top of.
  • capability - noun the quality of being capable -- physically or intellectually or legally;  an aptitude that may be developed;  the susceptibility of something to a particular treatment.
  • capable - adj. (usually followed by `of') having capacity or ability; (followed by `of') having the temperament or inclination for;  possibly accepting or permitting;  having the requisite qualities for;  have the skills and qualifications to do things well.
  • capacitance - noun an electrical phenomenon whereby an electric charge is stored;  an electrical device characterized by its capacity to store an electric charge.
  • capacity - noun a specified function;  the maximum production possible;  tolerance for alcohol;  ability to perform or produce;  the power to learn or retain knowledge; in law, the ability to understand the facts and significance of your behavior;  (computer science) the amount of information (in bytes) that can be stored on a disk drive; the amount that can be contained;  an electrical phenomenon whereby an electric charge is stored;  the susceptibility of something to a particular treatment.
  • capillary - adj. long and slender with a very small internal diameter; of or relating to hair;  noun a tube of small internal diameter; holds liquid by capillary action;  any of the minute blood vessels connecting arterioles with venules.
  • capital - adj. uppercase;  of primary important;  first-rate;  noun the upper part of a column that supports the entablature;  one of the large alphabetic characters used as the first letter in writing or printing proper names and sometimes for emphasis;  the federal government of the United States;  a seat of government;  a center that is associated more than any other with some activity or product; wealth in the form of money or property owned by a person or business and human resources of economic value;  assets available for use in the production of further assets;  a book written by Karl Marx (1867) describing his economic theories.
  • capitate - adj. being abruptly enlarged and globose at the tip;  nounthe wrist bone with a rounded head shape that articulates with the 3rd metacarpus.
  • capitulum - noun a dense clusters of flowers or foliage;  the upper branches and leaves of a tree;  fruiting spike of a cereal plant especially corn.
  • capsaicin - noun colorless pungent crystalline compound derived from capsicum; source of the hotness of hot peppers of the genus Capsicum such as chili and cayenne and jalapeno.
  • capsular - adj. of or relating to a capsule;  resembling a capsule.
  • capsule - noun a pill in the form of a small rounded gelatinous container with medicine inside;  a small container;  a structure that encloses a body part;  a dry dehiscent seed vessel or the spore-containing structure of e.g. mosses;  a pilot's seat in an airplane that can be forcibly ejected in the case of an emergency; then the pilot descends by parachute;  a spacecraft designed to transport people and support human life in outer space;  a shortened version of a written work;  verb enclose in a capsule;  put in a short or concise form; reduce in volume.
  • caption - noun brief description accompanying an illustration;  taking exception; especially an quibble based on a captious argument; translation of foreign dialogue of a movie or TV program; usually displayed at the bottom of the screen;  verb provide with a caption, as of a photograph or a drawing.
  • capture - noun the act of forcibly dispossessing an owner of property;  the removal of an opponent's piece from the chess board; the act of taking of a person by force;  any process in which an atomic or nuclear system acquires an additional particle;  a process whereby a star or planet holds an object in its gravitational field;  verbcapture as if by hunting, snaring, or trapping;  succeed in representing or expressing something intangible;  attract; cause to be enamored;  bring about the capture of an elementary particle or celestial body and causing it enter a new orbit;  succeed in catching or seizing, especially after a chase;  take possession of by force, as after an invasion.
  • car - noun a motor vehicle with four wheels; usually propelled by an internal combustion engine;  a wheeled vehicle adapted to the rails of railroad;  where passengers ride up and down;  the compartment that is suspended from an airship and that carries personnel and the cargo and the power plant;  a conveyance for passengers or freight on a cable railway.
  • carbohydrate - noun an essential structural component of living cells and source of energy for animals; includes simple sugars with small molecules as well as macromolecular substances; are classified according to the number of monosaccharide groups they contain.
  • carbon - noun a copy made with carbon paper;  an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds;  a thin paper coated on one side with a dark waxy substance (often containing carbon); used to transfer characters from the original to an under sheet of paper.
  • carbonate - noun a salt or ester of carbonic acid (containing the anion CO3);  verb treat with carbon dioxide;  turn into a carbonate.
  • carbonated - adj. having carbonation (especially artificially carbonated).
  • carbonic - adj. relating to or consisting of or yielding carbon.
  • carboxyl - adj. relating to or containing the carboxyl group or carboxyl radical;  noun the univalent radical -COOH; present in and characteristic of organic acids.
  • carcinogenic - adj. causing or tending to cause cancer.
  • carcinoma - noun any malignant tumor derived from epithelial tissue; one of the four major types of cancer.
  • card - noun one of a set of small pieces of stiff paper marked in various ways and used for playing games or for telling fortunes;  a card certifying the identity of the bearer;  (golf) a record of scores (as in golf);  a rectangular piece of stiff paper used to send messages (may have printed greetings or pictures);  thin cardboard, usually rectangular;  a printed circuit that can be inserted into expansion slots in a computer to increase the computer's capabilities; (baseball) a list of batters in the order in which they will bat;  a list of dishes available at a restaurant;  a printed or written greeting that is left to indicate that you have visited;  a sign posted in a public place as an advertisement;  a witty amusing person who makes jokes;  verbask someone for identification to determine whether he or she is old enough to consume liquor;  separate the fibers of.
  • cardia - noun the opening into the stomach and that part of the stomach connected to the esophagus.
  • cardiac - adj. of or relating to the heart.
  • cardinal - adj. serving as an essential component;  being or denoting a numerical quantity but not order;  noun crested thick-billed North American finch having bright red plumage in the male;  a variable color averaging a vivid red;  (Roman Catholic Church) one of a group of more than 100 prominent bishops in the Sacred College who advise the Pope and elect new Popes;  the number of elements in a mathematical set; denotes a quantity but not the order.
  • cardiographic - adj. of or relating to a cardiograph.
  • cardiologist - noun a specialist in cardiology; a specialist in the structure and function and disorders of the heart.
  • cardiology - noun the branch of medicine dealing with the heart and its diseases.
  • cardiomyopathy - noun a disorder (usually of unknown origin) of the heart muscle (myocardium).
  • cardiopulmonary - adj. of or pertaining to or affecting both the heart and the lungs and their functions.
  • cardiovascular - adj. of or pertaining to or involving the heart and blood vessels.
  • carditis - noun inflammation of the heart.
  • cards - noun a game played with playing cards.
  • care - noun activity involved in maintaining something in good working order;  the work of providing treatment for or attending to someone or something;  attention and management implying responsibility for safety;  a cause for feeling concern;  judiciousness in avoiding harm or danger;  an anxious feeling;  verb feel concern or interest;  provide care for;  be concerned with;  prefer or wish to do something;  be in charge of, act on, or dispose of.
  • career - noun the general progression of your working or professional life;  the particular occupation for which you are trained; verb move headlong at high speed.
  • careful - adj. exercising caution or showing care or attention;  with care and dignity;  mindful of the future in spending money;  cautiously attentive;  full of cares or anxiety.
  • carefully - adv. taking care or paying attention;  with caution or prudence or tact.
  • caregiver - noun a person who is responsible for attending to the needs of a child or dependent adult;  a person who helps in identifying or preventing or treating illness or disability.
  • cargo - noun goods carried by a large vehicle.
  • caries - noun soft decayed area in a tooth; progressive decay can lead to the death of a tooth.
  • carina - noun any of various keel-shaped structures or ridges such as that on the breastbone of a bird or that formed by the fused petals of a pea blossom;  a keel-shaped constellation in the southern hemisphere; contains the start Canopus.
  • carnegie - noun United States industrialist and philanthropist who endowed education and public libraries and research trusts (1835-1919);  United States educator famous for writing a book about how to win friends and influence people (1888-1955).
  • carolina - noun the area of the states of North Carolina and South Carolina.
  • carotene - noun yellow or orange-red fat-soluble pigments in plants; an orange isomer of an unsaturated hydrocarbon found in many plants; is converted into vitamin A in the liver.
  • carotid - adj. of or relating to either of the two major arteries supplying blood to the head and neck.
  • carpal - adj. of or relating to the wrist;  noun any of the eight small bones of the wrist of primates.
  • carpet - noun floor covering consisting of a piece of thick heavy fabric (usually with nap or pile);  verb cover with a carpet;  cover completely, as if with a carpet;  form a carpet-like cover (over).
  • carrier - noun (genetics) an organism that possesses a recessive gene whose effect is masked by a dominant allele; the associated trait is not apparent but can be passed on to offspring;  a rack attached to a vehicle; for carrying luggage or skis or the like;  a self-propelled wheeled vehicle designed specifically to carry something; a person or firm in the business of transporting people or goods or messages;  (medicine) a person (or animal) who has some pathogen to which he is immune but who can pass it on to others;  a boy who delivers newspapers;  someone whose employment involves carrying something;  an inactive substance that is a vehicle for a radioactive tracer of the same substance and that assists in its recovery after some chemical reaction;  a large warship that carries planes and has a long flat deck for takeoffs and landings;  a man who delivers the mail;  a radio wave that can be modulated in order to transmit a signal.
  • carry - noun the act of carrying something;  verb continue or extend; include, as on a list;  sing or play against other voices or parts;  serve as a means for expressing something;  pass on a communication;  be successful in;  win in an election;  secure the passage or adoption (of bills and motions);  cover a certain distance or advance beyond; have a certain range;  be able to feed;  drink alcohol without showing ill effects;  bear or be able to bear the weight, pressure,or responsibility of;  propel or give impetus to;  bear (a crop);  include as the content; broadcast or publicize;  pursue a line of scent or be a bearer;  transfer (a number, cipher, or remainder) to the next column or unit's place before or after, in addition or multiplication;  capture after a fight;  have on the surface or on the skin;  take further or advance;  compensate for a weaker partner or member by one's own performance;  extend to a certain degree;  win approval or support for;  be equipped with (a mast or sail);  be necessarily associated with or result in or involve;  have or possess something abstract;  keep up with financial support;  have with oneself; have on one's person;  be conveyed over a certain distance;  have as an inherent or characteristic feature or have as a consequence;  be pregnant with; propel, "Carry the ball";  move while supporting, either in a vehicle or in one's hands or on one's body;  support or hold in a certain manner;  transmit or serve as the medium for transmission;  transfer (entries) from one account book to another;  have on hand;  behave in a certain manner;  contain or hold; have within.
  • cartilage - noun tough elastic tissue; mostly converted to bone in adults.
  • cartilaginous - adj. difficult to chew;  of or relating to cartilage.
  • cartoon - noun a film made by photographing a series of cartoon drawings to give the illusion of movement when projected in rapid sequence;  a humorous or satirical drawing published in a newspaper or magazine;  verb draw cartoons of.
  • cascade - noun a succession of stages or operations or processes or units;  a small waterfall or series of small waterfalls;  a sudden downpour (as of tears or sparks etc) likened to a rain shower;  verbarrange (open windows) on a computer desktop so that they overlap each other, with the title bars visible;  rush down in big quantities, like a cascade.
  • cascades - noun a mountain range in the northwestern United States extending through Washington and Oregon and northern California; a part of the Coast Range.
  • case - noun a portable container for carrying several objects;  a glass container used to store and display items in a shop or museum or home;  bed linen consisting of a cover for a pillow;  the actual state of things;  nouns or pronouns or adjectives (often marked by inflection) related in some way to other words in a sentence;  a statement of facts and reasons used to support an argument;  a problem requiring investigation;  an occurrence of something;  a person requiring professional services;  the quantity contained in a case;  a specific state of mind that is temporary;  a comprehensive term for any proceeding in a court of law whereby an individual seeks a legal remedy;  the enclosing frame around a door or window opening;  the housing or outer covering of something;  an enveloping structure or covering enclosing an animal or plant organ or part;  a person of a specified kind (usually with many eccentricities);  a person who is subjected to experimental or other observational procedures; someone who is an object of investigation;  a special set of circumstances;  verb look over, usually with the intention to rob; enclose in, or as if in, a case.
  • case-by-case - adj. separate and distinct from others of the same kind.
  • cashier - noun a person responsible for receiving payments for goods and services (as in a shop or restaurant);  an employee of a bank who receives and pays out money;  verb discharge with dishonor, as in the army;  discard or do away with.
  • cast - adj. (of molten metal or glass) formed by pouring or pressing into a mold;  noun the act of throwing dice;  object formed by a mold; bandage consisting of a firm covering (often made of plaster of Paris) that immobilizes broken bones while they heal;  the actors in a play;  the distinctive form in which a thing is made;  a violent throw; the act of throwing a fishing line out over the water by means of a rod and reel;  container into which liquid is poured to create a given shape when it hardens;  the visual appearance of something or someone;  verb form by pouring (e.g., wax or hot metal) into a cast or mold;  select to play,sing, or dance a part in a play, movie, musical, opera, or ballet;  deposit;  assign the roles of (a movie or a play) to actors;  eject the contents of the stomach through the mouth; formulate in a particular style or language;  choose at random;  throw forcefully;  get rid of;  put or send forth;  move about aimlessly or without any destination, often in search of food or employment.
  • casting - noun the choice of actors to play particular roles in a play or movie;  the act of throwing a fishing line out over the water by means of a rod and reel;  the act of creating something by casting it in a mold;  object formed by a mold.
  • cat - noun feline mammal usually having thick soft fur and no ability to roar: domestic cats; wildcats;  a spiteful woman gossip;  a method of examining body organs by scanning them with X rays and using a computer to construct a series of cross-sectional scans along a single axis;  any of several large cats typically able to roar and living in the wild;  a large tracked vehicle that is propelled by two endless metal belts; frequently used for moving earth in construction and farm work;  a whip with nine knotted cords;  the leaves of the shrub Catha edulis which are chewed like tobacco or used to make tea; has the effect of a euphoric stimulant;  an informal term for a youth or man;  verb beat with a cat-o'-nine-tails;  eject the contents of the stomach through the mouth.
  • catabolic - adj. characterized by destructive metabolism;  relating to or characterized by catabolism.
  • catabolism - noun breakdown in living organisms of more complex substances into simpler ones together with release of energy.
  • catalyst - noun something that causes an important event to happen;  (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected.
  • catalytic - adj. relating to or causing or involving catalysis.
  • catalyze - verb change by catalysis or cause to catalyze.
  • catastrophe - noun a sudden violent change in the earth's surface; a state of extreme (usually irremediable) ruin and misfortune;  an event resulting in great loss and misfortune.
  • catch - noun the act of catching an object with the hands;  a cooperative game in which a ball is passed back and forth;  a fastener that fastens or locks a door or window;  a restraint that checks the motion of something;  a drawback or difficulty that is not readily evident;  a break or check in the voice (usually a sign of strong emotion);  anything that is caught (especially if it is worth catching);  a person regarded as a good matrimonial prospect;  the quantity that was caught;  the act of apprehending (especially apprehending a criminal);  verb contract;  delay or hold up; prevent from proceeding on schedule or as planned;  be struck or affected by;  grasp with the mind or develop an understanding of;  discover or come upon accidentally, suddenly, or unexpectedly; catch somebody doing something or in a certain state;  become aware of;  be the catcher;  cause to become accidentally or suddenly caught, ensnared, or entangled;  spread or be communicated;  take hold of so as to seize or restrain or stop the motion of;  take in and retain; attract and fix;  apprehend and reproduce accurately;  reach in time; suffer from the receipt of;  perceive with the senses quickly, suddenly, or momentarily;  hear, usually without the knowledge of the speakers;  perceive by hearing;  get or regain something necessary, usually quickly or briefly;  check oneself during an action;  start burning;  detect a blunder or misstep;  catch up with and possibly overtake;  succeed in catching or seizing, especially after a chase;  to hook or entangle;  reach with a blow or hit in a particular spot; capture as if by hunting, snaring, or trapping;  attract; cause to be enamored;  see or watch.
  • catchy - adj. having concealed difficulty;  likely to attract attention.
  • catecholamine - noun any of a group of chemicals including epinephrine and norepinephrine that are produced in the medulla of the adrenal gland.
  • categorical - adj. relating to or included in a category or categories; not modified or restricted by reservations.
  • categorization - noun the act of distributing things into classes or categories of the same type;  the basic cognitive process of arranging into classes or categories;  a group of people or things arranged by class or category.
  • categorize - verb place into or assign to a category.
  • categorized - adj. arranged into categories.
  • category - noun a general concept that marks divisions or coordinations in a conceptual scheme;  a collection of things sharing a common attribute.
  • catheter - noun a thin flexible tube inserted into the body to permit introduction or withdrawal of fluids or to keep the passageway open.
  • catheterization - noun the operation of introducing a catheter into the body.
  • cation - noun a positively charged ion.
  • cauda - noun any taillike structure.
  • caudal - adj. situated in or directed toward the part of the body from which the tail arises;  resembling a tail;  constituting or relating to a tail;  adv. toward the posterior end of the body.
  • caudate - adj. having a tail or taillike appendage;  of a leaf shape; tapering gradually into a long taillike tip;  noun amphibians that resemble lizards;  a tail-shaped basal ganglion located in a lateral ventricle of the brain.
  • cause - noun a justification for something existing or happening; events that provide the generative force that is the origin of something;  any entity that produces an effect or is responsible for events or results;  a series of actions advancing a principle or tending toward a particular end;  a comprehensive term for any proceeding in a court of law whereby an individual seeks a legal remedy;  verb give rise to; cause to happen or occur, not always intentionally;  cause to do; cause to act in a specified manner.
  • causing - noun the act of causing something to happen.
  • caustic - adj. of a substance, especially a strong acid; capable of destroying or eating away by chemical action;  harsh or corrosive in tone;  noun any chemical substance that burns or destroys living tissue.
  • caution - noun the trait of being cautious; being attentive to possible danger;  judiciousness in avoiding harm or danger;  a warning against certain acts;  the trait of being circumspect and prudent;  verb warn strongly; put on guard.
  • cautious - adj. cautious in attitude and careful in actions; prudent; showing careful forethought;  avoiding excess;  noun people who are fearful and cautious.
  • cavernous - adj. being or suggesting a cavern;  filled with vascular sinuses and capable of becoming distended and rigid as the result of being filled with blood.
  • cavity - noun (anatomy) a natural hollow or sinus within the body; soft decayed area in a tooth; progressive decay can lead to the death of a tooth;  space that is surrounded by something;  a sizeable hole (usually in the ground).
  • cc - noun a metric unit of volume equal to one thousandth of a liter.
  • cd - noun a digitally encoded recording on an optical disk that is smaller than a phonograph record; played back by a laser;  a debt instrument issued by a bank; usually pays interest;  the basic unit of luminous intensity adopted under the Systeme International d'Unites; equal to 1/60 of the luminous intensity per square centimeter of a black body radiating at the temperature of 2,046 degrees Kelvin;  a soft bluish-white ductile malleable toxic bivalent metallic element; occurs in association with zinc ores.
  • cdc - noun a federal agency in the Department of Health and Human Services; located in Atlanta; investigates and diagnoses and tries to control or prevent diseases (especially new and unusual diseases).
  • cease - noun (`cease' is a noun only in the phrase `without cease') end;  verb have an end, in a temporal, spatial, or quantitative sense; either spatial or metaphorical;  put an end to a state or an activity.
  • ceaseless - adj. uninterrupted in time and indefinitely long continuing.
  • cecum - noun the cavity in which the large intestine begins and into which the ileum opens.
  • ceiling - noun the overhead upper surface of a room;  (meteorology) altitude of the lowest layer of clouds;  maximum altitude at which a plane can fly (under specified conditions);  an upper limit on what is allowed.
  • celebrity - noun a widely known person;  the state or quality of being widely honored and acclaimed.
  • celery - noun stalks eaten raw or cooked or used as seasoning; widely cultivated herb with aromatic leaf stalks that are eaten raw or cooked.
  • celiac - adj. belonging to or prescribed for celiac disease;  of or in or belonging to the cavity of the abdomen.
  • cell - noun (biology) the basic structural and functional unit of all organisms; they may exist as independent units of life (as in monads) or may form colonies or tissues as in higher plants and animals;  a device that delivers an electric current as the result of a chemical reaction;  a room where a prisoner is kept;  small room is which a monk or nun lives;  any small compartment;  a small unit serving as part of or as the nucleus of a larger political movement;  a hand-held mobile radiotelephone for use in an area divided into small sections, each with its own short-range transmitter/receiver.
  • cell membrane - noun a thin membrane (a double layer of lipids) enclosing the cytoplasm of a cell; proteins in the membrane control passage of ions (like sodium or potassium or calcium) in and out of the cell.
  • cellular - adj. characterized by or divided into or containing cells or compartments (the smallest organizational or structural unit of an organism or organization);  relating to cells.
  • cellulose - noun a polysaccharide that is the chief constituent of all plant tissues and fibers.
  • cementum - noun a specialized bony substance covering the root of a tooth.
  • center - adj. equally distant from the extremes;  of or belonging to neither the right nor the left politically or intellectually;  noun a position on a basketball team of the player who participates in the jump that starts the game;  the position of the player on the line of scrimmage who puts the ball in play;  the position on a hockey team of the player who participates in the face off at the beginning of the game;  a building dedicated to a particular activity;  a cluster of nerve cells governing a specific bodily process;  the object upon which interest and attention focuses;  the sweet central portion of a piece of candy that is enclosed in chocolate or some other covering; politically moderate persons; centrists;  the middle of a military or naval formation;  a place where some particular activity is concentrated;  a point equidistant from the ends of a line or the extremities of a figure;  an area that is approximately central within some larger region;  (football) the person who plays center on the line of scrimmage and snaps the ball to the quarterback;  (basketball) the person who plays center on a basketball team;  (ice hockey) the person who plays center on a hockey team;  the piece of ground in the outfield directly ahead of the catcher;  mercantile establishment consisting of a carefully landscaped complex of shops representing leading merchandisers; usually includes restaurants and a convenient parking area; a modern version of the traditional marketplace;  the choicest or most essential or most vital part of some idea or experience;  verb move into the center;  direct one's attention on something;  center upon.
  • centered - adj. being or placed in the center;  concentrated on or clustered around a central point or purpose.
  • central - adj. in or near a center or constituting a center; the inner area;  centrally located and easy to reach;  used in the description of a place that in the middle of another place;  serving as an essential component;  noun a workplace that serves as a telecommunications facility where lines from telephones can be connected together to permit communication.
  • centralized - adj. drawn toward a center or brought under the control of a central authority;  concentrated on or clustered around a central point or purpose.
  • centrally - adv. in or near or toward a center or according to a central role or function.
  • centrifugation - noun the process of separating substances by the use of a centrifuge.
  • centrifuge - noun an apparatus that uses centrifugal force to separate particles from a suspension;  verb rotate at very high speed in order to separate the liquids from the solids.
  • centriole - noun one of a pair of small cylindrical cell organelles near the nucleus in animal cells; composed of nine triplet microtubules and form the asters during mitosis.
  • centromere - noun a specialized condensed region of each chromosome that appears during mitosis where the chromatids are held together to form an X shape.
  • centrosome - noun small region of cytoplasm adjacent to the nucleus; contains the centrioles and serves to organize the microtubules.
  • centurion - noun (ancient Rome) the leader of 100 soldiers.
  • century - noun a period of 100 years.
  • ceo - noun the corporate executive responsible for the operations of the firm; reports to a board of directors; may appoint other managers (including a president).
  • cephalic - adj. of or relating to the head.
  • ceramics - noun the art of making and decorating pottery.
  • cereal - adj. made of grain or relating to grain or the plants that produce it;  noun a breakfast food prepared from grain;  grass whose starchy grains are used as food: wheat; rice; rye; oats; maize; buckwheat; millet;  foodstuff prepared from the starchy grains of cereal grasses.
  • cerebellar - adj. relating to or associated with the cerebellum.
  • cerebellum - noun a major division of the vertebrate brain; situated above the medulla oblongata and beneath the cerebrum in humans.
  • cerebral - adj. involving intelligence rather than emotions or instinct; of or relating to the cerebrum or brain.
  • cerebrospinal - adj. of or relating to the brain and spinal cord.
  • cerebrovascular - adj. of or relating to the brain and the blood vessels that supply it.
  • cerebrum - noun anterior portion of the brain consisting of two hemispheres; dominant part of the brain in humans.
  • certain - adj. exercising or taking care great enough to bring assurance;  established beyond doubt or question; definitely known; having or feeling no doubt or uncertainty; confident and assured; certain to occur; destined or inevitable;  definite but not specified or identified;  reliable in operation or effect;  established irrevocably.
  • certainly - adv. definitely or positively (`sure' is sometimes used informally for `surely').
  • certificate - noun a document attesting to the truth of certain stated facts;  a formal declaration that documents a fact of relevance to finance and investment; the holder has a right to receive interest or dividends;  verb authorize by certificate;  present someone with a certificate.
  • certification - noun the act of certifying or bestowing a franchise on; validating the authenticity of something or someone;  a document attesting to the truth of certain stated facts;  confirmation that some fact or statement is true.
  • certified - adj. endorsed authoritatively as having met certain requirements;  holding appropriate documentation and officially on record as qualified to perform a specified function or practice a specified skill;  having quality or payment or delivery guaranteed;  fit to be certified as insane (and treated accordingly).
  • cervical - adj. relating to or associated with the neck;  of or relating to the cervix of the uterus.
  • cervix - noun necklike opening to the uterus;  the part of an organism that connects the head to the rest of the body.
  • cesarean - adj. relating to abdominal delivery;  noun the delivery of a fetus by surgical incision through the abdominal wall and uterus (from the belief that Julius Caesar was born that way).
  • cessation - noun a stopping.
  • cf - adv. compare (used in texts to point the reader to another location in the text);  noun the most common congenital disease; the child's lungs and intestines and pancreas become clogged with thick mucus; caused by defect in a single gene; there is no cure;  a radioactive transuranic element; discovered by bombarding curium with alpha particles.
  • chafing - noun soreness or irritation of the skin caused by friction.
  • chain - noun a series of (usually metal) rings or links fitted into one another to make a flexible ligament;  a necklace made by a stringing objects together;  anything that acts as a restraint;  a number of similar establishments (stores or restaurants or banks or hotels or theaters) under one ownership;  a series of things depending on each other as if linked together;  (chemistry) a series of linked atoms (generally in an organic molecule);  British biochemist (born in Germany) who isolated and purified penicillin, which had been discovered in 1928 by Sir Alexander Fleming (1906-1979);  a unit of length;  a series of hills or mountains;  verb fasten or secure with chains;  connect or arrange into a chain by linking.
  • chains - noun metal shackles; for hands or legs.
  • chair - noun a seat for one person, with a support for the back;  the position of professor;  an instrument of execution by electrocution; resembles an ordinary seat for one person;  the officer who presides at the meetings of an organization;  verb act or preside as chair, as of an academic department in a university;  preside over.
  • challenge - noun a demand by a sentry for a password or identification;  questioning a statement and demanding an explanation;  a formal objection to the selection of a particular person as a juror;  a call to engage in a contest or fight;  a demanding or stimulating situation;  verb raise a formal objection in a court of law; ask for identification;  issue a challenge to;  take exception to.
  • challenging - adj. disturbingly provocative;  stimulating interest or thought;  requiring full use of your abilities or resources.
  • chamber - noun a natural or artificial enclosed space;  a room where a judge transacts business;  an enclosed volume in the body;  a deliberative or legislative or administrative or judicial assembly;  a room used primarily for sleeping;  verb place in a chamber.
  • chambers - noun English architect (1723-1796).
  • chance - adj. occurring or appearing or singled out by chance;  nouna risk involving danger;  a measure of how likely it is that some event will occur; a number expressing the ratio of favorable cases to the whole number of cases possible;  an unknown and unpredictable phenomenon that causes an event to result one way rather than another;  the possibility of future success;  a possibility due to a favorable combination of circumstances;  verb be the case by chance;  come upon, as if by accident; meet with;  take a risk in the hope of a favorable outcome.
  • change - noun the action of changing something;  a different or fresh set of clothes;  a thing that is different;  an event that occurs when something passes from one state or phase to another;  the result of alteration or modification;  money received in return for its equivalent in a larger denomination or a different currency;  the balance of money received when the amount you tender is greater than the amount due;  coins of small denomination regarded collectively;  a relational difference between states; especially between states before and after some event;  a difference that is usually pleasant; verb undergo a change; become different in essence; losing one's or its original nature;  make or become different in some particular way, without permanently losing one's or its former characteristics or essence;  cause to change; make different; cause a transformation; exchange or replace with another, usually of the same kind or category;  remove or replace the coverings of;  change clothes; put on different clothes;  lay aside, abandon, or leave for another; become deeper in tone;  change from one vehicle or transportation line to another;  give to, and receive from, one another.
  • changed - adj. made or become different in some respect;  made or become different in nature or form;  changed in constitution or structure or composition by metamorphism.
  • changing - adj. marked by continuous change or effective action.
  • channel - noun a passage for water (or other fluids) to flow through; a television station and its programs;  a path over which electrical signals can pass;  (often plural) a means of communication or access;  a deep and relatively narrow body of water (as in a river or a harbor or a strait linking two larger bodies) that allows the best passage for vessels;  a way of selling a company's product either directly or via distributors;  a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance;  a long narrow furrow cut either by a natural process (such as erosion) or by a tool (as e.g. a groove in a phonograph record);  verb direct the flow of;  send from one person or place to another;  transmit or serve as the medium for transmission.
  • channels - noun official routes of communication.
  • chapel - noun a place of worship that has its own altar;  a service conducted in a place of worship that has its own altar.
  • chapman - noun archaic term for an itinerant peddler;  United States pioneer who planted apple trees as he traveled (1774-1845).
  • chapter - noun a subdivision of a written work; usually numbered and titled;  a series of related events forming an episode;  a local branch of some fraternity or association;  an ecclesiastical assembly of the monks in a monastery or even of the canons of a church;  any distinct period in history or in a person's life.
  • character - noun (genetics) an attribute (structural or functional) that is determined by a gene or group of genes;  the inherent complex of attributes that determine a persons moral and ethical actions and reactions;  an actor's portrayal of someone in a play;  a formal recommendation by a former employer to a potential future employer describing the person's qualifications and dependability;  a written symbol that is used to represent speech;  a person of a specified kind (usually with many eccentricities);  good repute;  a characteristic property that defines the apparent individual nature of something;  an imaginary person represented in a work of fiction (play or film or story);  verb engrave or inscribe characters on.
  • characteristic - adj. typical or distinctive;  noun a distinguishing quality;  any measurable property of a device measured under closely specified conditions;  the integer part (positive or negative) of the representation of a logarithm; in the expression log 643 = 2.808 the characteristic is 2;  a prominent aspect of something.
  • characterize - verb be characteristic of;  describe or portray the character or the qualities or peculiarities of.
  • characterized - adj. of the meaning of words or concepts; stated precisely.
  • charge - noun a impetuous rush toward someone or something;  a quantity of explosive to be set off at one time;  heraldry consisting of a design or image depicted on a shield;  (criminal law) a pleading describing some wrong or offense;  request for payment of a debt;  a person committed to your care;  the quantity of unbalanced electricity in a body (either positive or negative) and construed as an excess or deficiency of electrons;  the price charged for some article or service; financial liabilities (such as a tax);  a special assignment that is given to a person or group;  attention and management implying responsibility for safety;  an assertion that someone is guilty of a fault or offence;  a formal statement of a command or injunction to do something;  the swift release of a store of affective force; (psychoanalysis) the libidinal energy invested in some idea or person or object;  verb saturate;  energize a battery by passing a current through it in the direction opposite to discharge;  cause formation of a net electrical charge in or on;  set or ask for a certain price;  instruct or command with authority;  instruct (a jury) about the law, its application, and the weighing of evidence;  impose a task upon, assign a responsibility to;  blame for, make a claim of wrongdoing or misbehavior against;  make an accusatory claim;  file a formal charge against;  to make a rush at or sudden attack upon, as in battle;  direct into a position for use;  fill or load to capacity;  place a heraldic bearing on;  lie down on command, of hunting dogs;  pay with a credit card; pay with plastic money; postpone payment by recording a purchase as a debt;  demand payment;  enter a certain amount as a charge;  attribute responsibility to;  provide with munition;  cause to be agitated, excited, or roused;  move quickly and violently;  give over to another for care or safekeeping;  cause to be admitted; of persons to an institution;  assign a duty, responsibility or obligation to.
  • charged - adj. of a particle or body or system; having a net amount of positive or negative electric charge;  fraught with great emotion; capable of producing violent emotion or arousing controversy; supplied with carbon dioxide.
  • charles - noun a river in eastern Massachusetts that empties into Boston Harbor and that separates Cambridge from Boston;  French physicist and author of Charles's law which anticipated Gay-Lussac's law (1746-1823);  the eldest son of Elizabeth II and heir to the English throne (born in 1948);  son of James I who was King of England and Scotland and Ireland; was deposed and executed by Oliver Cromwell (1600-1649);  King of England and Scotland and Ireland during the Restoration (1630-1685);  as Charles II he was Holy Roman Emperor and as Charles I he was king of France (823-877);  King of France who began his reign with most of northern France under English control; after the intervention of Jeanne d'Arc the French were able to defeat the English and end the Hundred Years' War (1403-1461);  King of France from 1560 to 1574 whose reign was dominated by his mother Catherine de Medicis (1550-1574);  king of the Franks and Holy Roman Emperor; conqueror of the Lombards and Saxons (742-814).
  • charlotte - noun a mold lined with cake or crumbs and filled with fruit or whipped cream or custard;  the largest city in North Carolina; located in south central North Carolina.
  • chart - noun a map designed to assist navigation by air or sea;  a visual display of information;  verb plan in detail;  make a chart of; represent by means of a graph.
  • chattahoochee - noun a river rising in northern Georgia and flowing southwest and south to join the Flint River at the Florida border where they form the Apalachicola River.
  • cheating - adj. violating accepted standards or rules;  not faithful to a spouse or lover;  noun a deception for profit to yourself.
  • check - noun the act of inspecting or verifying;  (chess) a direct attack on an opponent's king;  obstructing an opponent in ice hockey;  a textile pattern of squares or crossed lines (resembling a checkerboard);  a mark left after a small piece has been chopped or broken off of something;  the bill in a restaurant;  a written order directing a bank to pay money;  the act of restraining power or action or limiting excess;  something immaterial that interferes with or delays action or progress;  an appraisal of the state of affairs; additional proof that something that was believed (some fact or hypothesis or theory) is correct;  a mark indicating that something has been noted or completed etc.;  the state of inactivity following an interruption;  verb make cracks or chinks in;  arrest the motion (of something) abruptly;  slow the growth or development of;  examine so as to determine accuracy, quality, or condition;  put a check mark on or near or next to;  verify by consulting a source or authority;  write out a check on a bank account;  place into check;  hold back, as of a danger or an enemy; check the expansion or influence of;  decline to initiate betting;  mark into squares or draw squares on; draw crossed lines on;  stop for a moment, as if out of uncertainty or caution;  stop in a chase especially when scent is lost;  abandon the intended prey, turn, and pursue an inferior prey, of falcons;  hand over something to somebody as for temporary safekeeping;  consign for shipment on a vehicle;  make an examination or investigation;  block or impede (a player from the opposing team) in ice hockey;  be verified or confirmed; pass inspection;  become fractured; break or crack on the surface only;  be careful or certain to do something; make certain of something;  find out, learn, or determine with certainty, usually by making an inquiry or other effort;  lessen the intensity of; temper; hold in restraint; hold or keep within limits;  train by instruction and practice; especially to teach self-control;  be compatible, similar or consistent; coincide in their characteristics.
  • checkpoint - noun a place (as at a frontier) where travellers are stopped for inspection and clearance.
  • cheek - noun either side of the face below the eyes;  impudent aggressiveness;  either of the two large fleshy masses of muscular tissue that form the human rump;  an impudent statement;  verbspeak impudently to.
  • cheekbone - noun the arch of bone beneath the eye that forms the prominence of the cheek.
  • cheese - noun a solid food prepared from the pressed curd of milk; erect or decumbent Old World perennial with axillary clusters of rosy-purple flowers; introduced in United States;  verb wind onto a cheese;  used in the imperative (get away, or stop it).
  • chemical - adj. relating to or used in chemistry;  of or made from or using substances produced by or used in reactions involving atomic or molecular changes;  noun produced by or used in a reaction involving changes in atoms or molecules.
  • chemically - adv. with respect to chemistry;  by the use of chemicals.
  • chemistry - noun the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions;  the way two individuals relate to each other.
  • chemoreceptor - noun a sensory receptor that responds to chemical stimuli.
  • chemotaxis - noun movement by a cell or organism in reaction to a chemical stimulus.
  • chemotherapeutic - adj. of or relating to chemotherapy.
  • chemotherapy - noun the use of chemical agents to treat or control disease (or mental illness).
  • chest - noun box with a lid; used for storage; usually large and sturdy;  furniture with drawers for keeping clothes;  the part of the human torso between the neck and the diaphragm or the corresponding part in other vertebrates.
  • chew - noun biting and grinding food in your mouth so it becomes soft enough to swallow;  a wad of something chewable as tobacco; verb chew (food).
  • chewing - noun biting and grinding food in your mouth so it becomes soft enough to swallow.
  • chiasm - noun an intersection or crossing of two tracts in the form of the letter X.
  • chicken - adj. easily frightened;  noun a domestic fowl bred for flesh or eggs; believed to have been developed from the red jungle fowl;  a foolhardy competition; a dangerous activity that is continued until one competitor becomes afraid and stops;  the flesh of a chicken used for food;  a person who lacks confidence, is irresolute and wishy-washy.
  • chickenpox - noun an acute contagious disease caused by herpes varicella zoster virus; causes a rash of vesicles on the face and body.
  • chief - adj. most important element;  noun a person who exercises control over workers;  a person who is in charge.
  • chiefly - adv. for the most part.
  • child - noun a young person of either sex;  a human offspring (son or daughter) of any age;  an immature childish person;  a member of a clan or tribe.
  • childbearing - adj. relating to or suitable for childbirth;  noun the parturition process in human beings; having a baby; the process of giving birth to a child.
  • childbirth - noun the parturition process in human beings; having a baby; the process of giving birth to a child.
  • childhood - noun the state of a child between infancy and adolescence;  the time of person's life when they are a child.
  • childless - adj. without offspring.
  • chime - noun a percussion instrument consisting of a set of tuned bells that are struck with a hammer; used as an orchestral instrument;  verb emit a sound.
  • chimpanzee - noun intelligent somewhat arboreal ape of equatorial African forests.
  • chin - noun the protruding part of the lower jaw;  Kamarupan languages spoken in western Burma and Bangladesh and easternmost India;  verb raise oneself while hanging from one's hands until one's chin is level with the support bar.
  • chiropractic - noun a method of treatment that manipulates body structures (especially the spine) to relieve low back pain or even headache or high blood pressure.
  • chiropractor - noun a therapist who practices chiropractic.
  • chitin - noun a tough semitransparent horny substance; the principal component of the exoskeletons of arthropods and the cell walls of certain fungi.
  • chlamydia - noun coccoid rickettsia infesting birds and mammals; cause infections of eyes and lungs and genitourinary tract;  a sexually transmitted infection caused by bacteria of the genus Chlamydia.
  • chloasma - noun a tan discoloration of a woman's face that is associated with pregnancy or with the use of oral contraceptives.
  • chloride - noun any salt of hydrochloric acid (containing the chloride ion);  any compound containing a chlorine atom.
  • chlorine - noun a common nonmetallic element belonging to the halogens; best known as a heavy yellow irritating toxic gas; used to purify water and as a bleaching agent and disinfectant; occurs naturally only as a salt (as in sea water).
  • chocolate - noun a medium brown to dark-brown color;  a food made from roasted ground cacao beans;  a beverage made from cocoa powder and milk and sugar; usually drunk hot.
  • choice - adj. of superior grade;  appealing to refined taste;  noun the act of choosing or selecting;  the person or thing chosen or selected; one of a number of things from which only one can be chosen.
  • cholesterol - noun an animal sterol that is normally synthesized by the liver; the most abundant steroid in animal tissues.
  • cholinergic - adj. releasing or activated by acetylcholine or a related compound.
  • choose - verb pick out, select, or choose from a number of alternatives;  select as an alternative; choose instead; prefer as an alternative;  see fit or proper to act in a certain way; decide to act in a certain way.
  • chorion - noun outermost membranous sac enclosing the embryo in higher vertebrates (reptiles, birds and mammals).
  • chorionic - adj. of or relating to a chorion.
  • choroid - noun a highly vascular membrane in the eye between the retina and the sclera.
  • chromatid - noun one of two identical strands into which a chromosome splits during mitosis.
  • chromatin - noun the readily stainable substance of a cell nucleus consisting of DNA and RNA and various proteins; during mitotic division it condenses into chromosomes.
  • chromium - noun a hard brittle multivalent metallic element; resistant to corrosion and tarnishing.
  • chromosomal - adj. of or relating to a chromosome.
  • chromosome - noun a threadlike body in the cell nucleus that carries the genes in a linear order.
  • chronic - adj. being long-lasting and recurrent or characterized by long suffering.
  • chronically - adv. in a slowly developing and long lasting manner;  in a habitual and longstanding manner.
  • churn - noun a vessel in which cream is agitated to separate butterfat from buttermilk;  verb stir (cream) vigorously in order to make butter;  be agitated.
  • churning - adj. (of a liquid) agitated vigorously; in a state of turbulence;  moving with or producing or produced by vigorous agitation.
  • chyle - noun a milky fluid consisting of lymph and emulsified fats; formed in the small intestine during digestion of ingested fats.
  • chylomicron - noun a microscopic particle of triglycerides produced in the intestines during digestion; in the bloodstream they release their fatty acids into the blood.
  • chyme - noun a semiliquid mass of partially digested food that passes from the stomach through the pyloric sphincter into the duodenum.
  • cid - noun the United States Army's principal law enforcement agency responsible for the conduct of criminal investigations for all levels of the Army anywhere in the world.
  • cigarette - noun finely ground tobacco wrapped in paper; for smoking.
  • ciliary - adj. of or relating to the human eyelash;  of or relating to cilia projecting from the surface of a cell;  relating to the ciliary body and associated structures of the eye.
  • ciliated - adj. having a margin or fringe of hairlike projections.
  • cilium - noun a hairlike projection from the surface of a cell; provides locomotion in free-swimming unicellular organisms;  any of the short curved hairs that grow from the edges of the eyelids.
  • circadian - adj. of or relating to biological processes occurring at 24-hour intervals.
  • circle - noun any circular or rotating mechanism;  a curved section or tier of seats in a hall or theater or opera house; usually the first tier above the orchestra;  ellipse in which the two axes are of equal length; a plane curve generated by one point moving at a constant distance from a fixed point;  something approximating the shape of a circle;  movement once around a course;  street names for flunitrazepan;  a road junction at which traffic streams circularly around a central island;  an unofficial association of people or groups;  verb travel around something;  move in circles;  form a circle around;  be around.
  • circuit - noun an electrical device that provides a path for electrical current to flow;  (law) a judicial division of a state or the United States (so-called because originally judges traveled and held court in different locations); one of the twelve groups of states in the United States that is covered by a particular circuit court of appeals;  an established itinerary of venues or events that a particular group of people travel to;  movement once around a course;  a journey or route all the way around a particular place or area;  a racetrack for automobile races;  verb make a circuit.
  • circuitry - noun electronic equipment consisting of a system of circuits.
  • circular - adj. marked by or moving in a circle;  having a circular shape;  shaped like a ring;  noun an advertisement (usually printed on a page or in a leaflet) intended for wide distribution.
  • circulate - verb cause to become widely known;  move around freely;  move through a space, circuit or system, returning to the starting point;  cause to move in a circuit or system;  cause to be distributed;  cause to move around;  become widely known and passed on;  move in circles.
  • circulating - adj. passing from one to another.
  • circulation - noun the spread or transmission of something (as news or money) to a wider group or area;  the dissemination of copies of periodicals (as newspapers or magazines);  free movement or passage through a series of vessels (as of water through pipes or sap through a plant);  movement through a circuit; especially the movement of blood through the heart and blood vessels;  number of copies of a newspaper or magazine that are sold;  (library science) the count of books that are loaned by a library over a specified period.
  • circulatory - adj. relating to circulatory system or to circulation of the blood;  of or relating to circulation.
  • circumcision - noun the act of circumcising; surgical removal of the foreskin of males;  the act of circumcising performed on males eight days after birth as a Jewish and Muslim religious rite;  (Roman Catholic Church and Anglican Church) feast day celebrating the circumcision of Jesus; celebrated on January 1st.
  • circumduction - noun a circular movement of a limb or eye.
  • circumference - noun the size of something as given by the distance around it;  the length of the closed curve of a circle;  the boundary line encompassing an area or object.
  • circumflex - noun a diacritical mark (^) placed above a vowel in some languages to indicate a special phonetic quality.
  • circumscribed - adj. showing or determining a boundary;  subject to limits or subjected to limits.
  • circumstances - noun a person's financial situation (good or bad); the state (usually personal) with regard to wealth;  your overall circumstances or condition in life (including everything that happens to you).
  • circumvallate - verb surround with or as if with a rampart or other fortification.
  • cirrhosis - noun a chronic disease interfering with the normal functioning of the liver; the major cause is chronic alcoholism.
  • cis - noun an alliance made up of states that had been Soviet Socialist Republics in the Soviet Union prior to its dissolution in Dec 1991.
  • cisterna - noun a sac or cavity containing fluid especially lymph or cerebrospinal fluid.
  • citation - noun thoroughbred that won the triple crown in 1948;  a summons that commands the appearance of a party at a proceeding;  an official award (as for bravery or service) usually given as formal public statement;  a short note recognizing a source of information or of a quoted passage;  (law) the act of citing (as of spoken words or written passages or legal precedents etc.);  a passage or expression that is quoted or cited.
  • cite - noun a short note recognizing a source of information or of a quoted passage;  verb call in an official matter, such as to attend court;  advance evidence for;  commend;  repeat a passage from; refer to for illustration or proof;  make reference to;  refer to.
  • citrate - noun a salt or ester of citric acid;  verb cause to form a salt or ester of citric acid.
  • citric - adj. of or related to citric acid.
  • citrus - noun any of numerous fruits of the genus Citrus having thick rind and juicy pulp; grown in warm regions;  any of numerous tropical usually thorny evergreen trees of the genus Citrus having leathery evergreen leaves and widely cultivated for their juicy edible fruits having leathery aromatic rinds.
  • city - noun people living in a large densely populated municipality;  a large and densely populated urban area; may include several independent administrative districts;  an incorporated administrative district established by state charter.
  • cl - noun a metric unit of volume equal to one hundredth of a liter;  a common nonmetallic element belonging to the halogens; best known as a heavy yellow irritating toxic gas; used to purify water and as a bleaching agent and disinfectant; occurs naturally only as a salt (as in sea water).
  • claim - noun demand for something as rightful or due;  an informal right to something;  an assertion of a right (as to money or property); an assertion that something is true or factual;  an established or recognized right;  a demand especially in the phrase "the call of duty";  verb take as an undesirable consequence of some event or state of affairs;  assert or affirm strongly; state to be true or existing; lay claim to; as of an idea;  ask for legally or make a legal claim to, as of debts, for example;  demand as being one's due or property; assert one's right or title to.
  • clammy - adj. unpleasantly cool and humid.
  • clamp - noun a device (generally used by carpenters) that holds things firmly together;  verb impose or inflict forcefully;  fasten or fix with a clamp.
  • clarify - verb make clear by removing impurities or solids, as by heating;  make clear and (more) comprehensible.
  • clarity - noun free from obscurity and easy to understand; the comprehensibility of clear expression;  the quality of clear water.
  • clark - noun Canadian politician who served as prime minister (1939-);  United States psychologist (born in Panama) whose research persuaded the Supreme Court that segregated schools were discriminatory (1914-);  United States general who was Allied commander in Africa and Italy in World War II and was commander of the United Nations forces in Korea (1896-1984);  United States explorer who (with Meriwether Lewis) led an expedition from St. Louis to the mouth of the Columbia River; Clark was responsible for making maps of the area (1770-1838).
  • clasp knife - noun a large knife with one or more folding blades.
  • class - noun elegance in dress or behavior;  people having the same social or economic status;  a collection of things sharing a common attribute;  (biology) a taxonomic group containing one or more orders;  a body of students who are taught together;  a body of students who graduate together;  a league ranked by quality; education imparted in a series of lessons or meetings;  verb arrange or order by classes or categories.
  • classic - adj. characteristic of the classical artistic and literary traditions;  adhering to established standards and principles;  noun a creation of the highest excellence;  an artist who has created classic works.
  • classical - adj. of or characteristic of a form or system felt to be of first significance before modern times;  of recognized authority or excellence;  noun traditional genre of music conforming to an established form and appealing to critical interest and developed musical taste.
  • classically - adv. in the manner of Greek and Roman culture.
  • classification - noun restriction imposed by the government on documents or weapons that are available only to certain authorized people;  the basic cognitive process of arranging into classes or categories;  a group of people or things arranged by class or category;  the act of distributing things into classes or categories of the same type.
  • classified - adj. arranged into classes;  official classification of information or documents; withheld from general circulation;  noun a short ad in a newspaper or magazine (usually in small print) and appearing along with other ads of the same type.
  • classify - verb arrange or order by classes or categories;  declare unavailable, as for security reasons;  assign to a class or kind.
  • classroom - noun a room in a school where lessons take place.
  • claustrophobia - noun a morbid fear of being closed in a confined space.
  • clavicle - noun bone linking the scapula and sternum.
  • clean - adj. free of drugs;  free from clumsiness; precisely or deftly executed;  not carrying concealed weapons;  (of a record) having no marks of discredit or offense;  free from dirt or impurities; or having clean habits;  (of behavior or especially language) free from objectionable elements; fit for all observers;  not spreading pollution or contamination; especially radioactive contamination;  ritually clean or pure;  thorough and without qualification;  exhibiting or calling for sportsmanship or fair play;  (of a manuscript) having few alterations or corrections;  morally pure;  without difficulties or problems;  free from impurities;  (of sound or color) free from anything that dulls or dims;  free of restrictions or qualifications;  (of a surface) not written or printed on;  free from sepsis or infection;  adv. completely; used as intensifiers;  in conformity with the rules or laws and without fraud or cheating;  noun a weightlift in which the barbell is lifted to shoulder height and then jerked overhead;  verb remove unwanted substances from, such as feathers or pits;  remove shells or husks from;  remove while making clean;  make clean by removing dirt, filth, or unwanted substances from;  remove all contents or possession from, or empty completely;  deprive wholly of money in a gambling game, robbery, etc.;  be cleanable;  clean one's body or parts thereof, as by washing;  remove unwanted substances from;  clean and tidy up the house.
  • cleaned - adj. made clean.
  • cleaning - noun the act of making something clean.
  • cleanse - verb clean one's body or parts thereof, as by washing; purge of an ideology, bad thoughts, or sins.
  • cleansed - adj. made clean.
  • cleansing - adj. acting like an antiseptic;  cleansing the body by washing; especially ritual washing of e.g. hands;  noun the act of making something clean.
  • clear - adj. of complexion; without such blemishes as e.g. acne; clear to the mind;  free from cloudiness; allowing light to pass through;  free from confusion or doubt;  free from clouds or mist or haze;  characterized by ease and quickness in perceiving;  clear and distinct to the senses; easily perceptible;  (especially of a title) free from any encumbrance or limitation that presents a question of fact or law;  free from contact or proximity or connection;  easily deciphered;  clear of charges or deductions;  affording free passage or view;  free from flaw or blemish or impurity;  characterized by freedom from troubling thoughts (especially guilt);  accurately stated or described;  freed from any question of guilt;  (of sound or color) free from anything that dulls or dims;  free of restrictions or qualifications;  adv. completely;  in an easily perceptible manner; noun the state of being free of suspicion;  a clear or unobstructed space or expanse of land or water;  verb free (the throat) by making a rasping sound;  remove;  make a way or path by removing objects; remove the occupants of;  remove (people) from a building;  rid of instructions or data;  make clear, bright, light, or translucent;  make free from confusion or ambiguity; make clear;  settle, as of a debt; pass an inspection or receive authorization;  pass by, over, or under without making contact;  go away or disappear;  sell;  be debited and credited to the proper bank accounts;  clear from impurities, blemishes, pollution, etc.;  free from payment of customs duties, as of a shipment;  rid of obstructions;  grant authorization or clearance for;  pronounce not guilty of criminal charges;  earn on some commercial or business transaction; earn as salary or wages;  make as a net profit;  yield as a net profit;  go unchallenged; be approved; become clear.
  • clearance - noun permission to proceed;  the distance by which one thing clears another; the space between them;  vertical space available to allow easy passage under something.
  • cleared - adj. rid of objects or obstructions such as e.g. trees and brush;  freed from any question of guilt.
  • clearing - noun the act of removing solid particles from a liquid;  the act of freeing from suspicion;  a tract of land with few or no trees in the middle of a wooded area.
  • clearly - adv. without doubt or question;  in an easily perceptible manner;  clear to the mind; with distinct mental discernment;  in an intelligible manner.
  • cleavage - noun the act of cleaving or splitting;  the line formed by a groove between two parts (especially the separation between a woman's breasts);  (embryology) the repeated division of a fertilised ovum;  the breaking of a chemical bond in a molecule resulting in smaller molecules;  the state of being split or cleft.
  • cleave - verb separate or cut with a tool, such as a sharp instrument;  make by cutting into;  come or be in close contact with; stick or hold together and resist separation.
  • cleft - adj. having one or more incisions reaching nearly to the midrib;  used of hooves;  noun a split or indentation in something (as the palate or chin);  a long narrow opening.
  • click - noun depression of a button on a computer mouse;  a hinged catch that fits into a notch of a ratchet to move a wheel forward or prevent it from moving backward;  a stop consonant made by the suction of air into the mouth (as in Bantu);  a short light metallic sound;  verb become clear or enter one's consciousness or emotions;  produce a click;  make a clicking or ticking sound;  make a clucking sounds, characteristic of hens;  cause to make a snapping sound;  move or strike with a noise;  click repeatedly or uncontrollably.
  • climb - noun the act of climbing something;  an event that involves rising to a higher point (as in altitude or temperature or intensity etc.);  an upward slope or grade (as in a road);  verb improve one's social status;  go upward with gradual or continuous progress;  move with difficulty, by grasping;  slope upward;  increase in value or to a higher point;  go up or advance.
  • climbing - noun an event that involves rising to a higher point (as in altitude or temperature or intensity etc.).
  • clinic - noun a healthcare facility for outpatient care;  meeting for diagnosis of problems and instruction or remedial work in a particular activity;  a medical establishment run by a group of medical specialists.
  • clinical - adj. scientifically detached; unemotional;  relating to a clinic or conducted in or as if in a clinic and depending on direct observation of patients.
  • clinically - adv. in a clinical manner.
  • clinician - noun a practitioner (of medicine or psychology) who does clinical work instead of laboratory experiments.
  • clitoris - noun a female sexual organ homologous to the penis.
  • cloaca - noun a waste pipe that carries away sewage or surface water.
  • clock - noun a timepiece that shows the time of day;  verb measure the time or duration of an event or action or the person who performs an action in a certain period of time.
  • clockwise - adj. in the same direction as the rotating hands of a clock;  adv. in the direction that the hands of a clock move.
  • clogged - adj. loaded with something that hinders motion;  thickened or coalesced in soft thick lumps (such as clogs or clots);  stopped up; clogged up.
  • clogging - adj. preventing movement.
  • clonal - adj. of or relating to a clone.
  • clone - noun a group of genetically identical cells or organisms derived from a single cell or individual by some kind of asexual reproduction;  an unauthorized copy or imitation;  a person who is almost identical to another;  verb make multiple identical copies of.
  • clonidine - noun an antihypertensive (trade name Catapres) that can be administered orally or via transdermal patches.
  • close - adj. marked by fidelity to an original;  rigorously attentive; strict and thorough;  at or within a short distance in space or time or having elements near each other;  close in relevance or relationship; inclined to secrecy or reticence about divulging information; crowded;  (of a contest or contestants) evenly matched;  used of hair or haircuts;  fitting closely but comfortably;  confined to specific persons;  strictly confined or guarded;  of textiles;  not far distant in time or space or degree or circumstances;  giving or spending with reluctance;  lacking fresh air;  adv. in an attentive manner;  near in time or place or relationship;  noun the concluding part of any performance;  the last section of a communication;  the temporal end; the concluding time;  verb finish a game in baseball by protecting a lead;  complete a business deal, negotiation, or an agreement;  move so that an opening or passage is obstructed; make shut;  become closed;  fill or stop up;  bar access to;  bring together all the elements or parts of;  draw near;  come together, as if in an embrace;  change one's body stance so that the forward shoulder and foot are closer to the intended point of impact;  cause a window or an application to disappear on a computer desktop;  engage at close quarters;  finish or terminate (meetings, speeches, etc.);  be priced or listed when trading stops;  unite or bring into contact or bring together the edges of;  cease to operate or cause to cease operating;  come to a close.
  • close up - adv. very close;  verb refuse to talk or stop talking; fall silent;  unite or bring into contact or bring together the edges of; cease to operate or cause to cease operating;  block passage through.
  • closed - adj. not open or affording passage or access;  used especially of mouth or eyes;  blocked against entry;  (set theory) of an interval that contains both its endpoints;  not having an open mind; not open to the general public;  with shutters closed;  requiring union membership;  not open.
  • closely - adv. in a close relation or position in time or space;  in a close manner;  in an attentive manner.
  • closeness - noun characterized by a lack of openness (especially about one's actions or purposes);  a feeling of being intimate and belonging together;  close or warm friendship;  extreme stinginess; the spatial property resulting from a relatively small distance;  the quality of being close and poorly ventilated.
  • closer - adv. (comparative of `near' or `close') within a shorter distance;  noun (baseball) a relief pitcher who can protect a lead in the last inning or two of the game;  a person who closes something.
  • closest - adv. (superlative of `near' or `close') within the shortest distance.
  • closing - adj. final or ending;  noun approaching a particular destination; a coming closer; a narrowing of a gap;  a concluding action;  termination of operations;  the act of closing something;  the last section of a communication.
  • closure - noun termination of operations;  a Gestalt principle of organization holding that there is an innate tendency to perceive incomplete objects as complete and to close or fill gaps and to perceive asymmetric stimuli as symmetric;  a rule for limiting or ending debate in a deliberative body;  approaching a particular destination; a coming closer; a narrowing of a gap;  the act of blocking;  an obstruction in a pipe or tube;  something settled or resolved; the outcome of decision making;  verb terminate debate by calling for a vote.
  • clot - noun a lump of material formed from the content of a liquid; verb change from a liquid to a thickened or solid state;  cause to change from a liquid to a solid or thickened state;  coalesce or unite in a mass;  turn into curds.
  • clothes - noun clothing in general.
  • clothing - noun a covering designed to be worn on a person's body.
  • clotting - noun the process of forming semisolid lumps in a liquid.
  • cloud - noun a visible mass of water or ice particles suspended at a considerable altitude;  any collection of particles (e.g., smoke or dust) or gases that is visible;  out of touch with reality;  suspicion affecting your reputation;  a cause of worry or gloom or trouble;  a group of many insects;  verb make milky or dull;  make gloomy or depressed; billow up in the form of a cloud;  colour with streaks or blotches of different shades;  place under suspicion or cast doubt upon;  make less visible or unclear;  make overcast or cloudy.
  • club - noun stout stick that is larger at one end;  a playing card in the minor suit that has one or more black trefoils on it;  a formal association of people with similar interests;  a spot that is open late at night and that provides entertainment (as singers or dancers) as well as dancing and food and drink;  a building that is occupied by a social club;  golf equipment used by a golfer to hit a golf ball;  a team of professional baseball players who play and travel together;  verbstrike with a club or a bludgeon;  gather and spend time together; unite with a common purpose.
  • clubbing - noun a condition in which the ends of toes and fingers become wide and thick; a symptom of heart or lung disease.
  • clubfoot - noun congenital deformity of the foot usually marked by a curled shape or twisted position of the ankle and heel and toes.
  • clump - noun a heavy dull sound (as made by impact of heavy objects);  a grouping of a number of similar things;  a compact mass; verb walk clumsily;  gather or cause to gather into a cluster;  come together as in a cluster or flock;  make or move along with a sound as of a horse's hooves striking the ground.
  • cluster - noun a grouping of a number of similar things;  verb come together as in a cluster or flock;  gather or cause to gather into a cluster.
  • clustered - adj. growing close together but not in dense mats; clustered together but not coherent;  occurring close together in bunches or clusters.
  • clustering - noun a grouping of a number of similar things.
  • cm - noun a metric unit of length equal to one hundredth of a meter; a radioactive transuranic metallic element; produced by bombarding plutonium with helium nuclei.
  • cns - noun the portion of the vertebrate nervous system consisting of the brain and spinal cord.
  • co - noun a state in west central United States in the Rocky Mountains;  one who refuses to serve in the armed forces on grounds of conscience;  a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition;  an odorless very poisonous gas that is a product of incomplete combustion of carbon.
  • coach - noun a carriage pulled by four horses with one driver;  a person who gives private instruction (as in singing or acting); (sports) someone in charge of training an athlete or a team;  a vehicle carrying many passengers; used for public transport;  a railcar where passengers ride;  verb teach and supervise (someone); act as a trainer or coach (to), as in sports;  drive a coach.
  • coagulate - adj. transformed from a liquid into a soft semisolid or solid mass;  verb change from a liquid to a thickened or solid state; cause to change from a liquid to a solid or thickened state.
  • coagulation - noun the process of forming semisolid lumps in a liquid.
  • coal - noun fossil fuel consisting of carbonized vegetable matter deposited in the Carboniferous period;  a hot fragment of wood or coal that is left from a fire and is glowing or smoldering;  verb take in coal;  supply with coal;  burn to charcoal.
  • coarctation - noun (biology) a narrowing or constriction of a vessel or canal; especially a congenital narrowing of the aorta;  tight or narrow compression.
  • coarse - adj. conspicuously and tastelessly indecent;  lacking refinement or cultivation or taste;  of textures that are rough to the touch or substances consisting of relatively large particles;  of low or inferior quality or value.
  • coat - noun growth of hair or wool or fur covering the body of an animal;  an outer garment that has sleeves and covers the body from shoulder down; worn outdoors;  a thin layer covering something;  verbcover or provide with a coat;  form a coat over;  put a coat on; cover the surface of; furnish with a surface.
  • coated - adj. having or dressed in a coat;  having a coating; covered with an outer layer or film; often used in combination.
  • coating - noun a thin layer covering something;  a heavy fabric suitable for coats;  a decorative texture or appearance of a surface (or the substance that gives it that appearance);  the work of applying something.
  • cobalt - noun a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition.
  • cocaine - noun a narcotic (alkaloid) extracted from coca leaves; used as a surface anesthetic or taken for pleasure; can become powerfully addictive.
  • coccygeal - adj. of or relating to or near the coccyx.
  • coccyx - noun the end of the vertebral column in humans and tailless apes.
  • cochlea - noun the snail-shaped tube (in the inner ear coiled around the modiolus) where sound vibrations are converted into nerve impulses by the organ of Corti.
  • cochlear - adj. of or relating to the cochlea of the ear.
  • cocoon - noun silky envelope spun by the larvae of many insects to protect pupas and by spiders to protect eggs;  verb wrap in or as if in a cocoon, as for protection;  retreat as if into a cocoon, as from an unfriendly environment.
  • code - noun a coding system used for transmitting messages requiring brevity or secrecy;  (computer science) the symbolic arrangement of data or instructions in a computer program or the set of such instructions;  a set of rules or principles or laws (especially written ones);  verb attach a code to;  convert ordinary language into code.
  • coding - noun act of writing in code or cipher.
  • codon - noun a specific sequence of three adjacent bases on a strand of DNA or RNA that provides genetic code information for a particular amino acid.
  • coelom - noun a cavity in the mesoderm of an embryo that gives rise in humans to the pleural cavity and pericardial cavity and peritoneal cavity.
  • coenzyme - noun a small molecule (not a protein but sometimes a vitamin) essential for the activity of some enzymes.
  • cofactor - noun a substance (as a coenzyme) that must join with another to produce a given result.
  • coffee - noun a beverage consisting of an infusion of ground coffee beans;  any of several small trees and shrubs native to the tropical Old World yielding coffee beans;  a medium brown to dark-brown color;  a seed of the coffee tree; ground to make coffee.
  • cognition - noun the psychological result of perception and learning and reasoning.
  • cognitive - adj. of or being or relating to or involving cognition.
  • coherency - noun logical and orderly and consistent relation of parts;  the state of cohering or sticking together.
  • cohort - noun a band of warriors (originally a unit of a Roman Legion);  a company of companions or supporters;  a group people having approximately the same age.
  • coiled - adj. curled or wound (especially in concentric rings or spirals).
  • coin - noun a metal piece (usually a disc) used as money;  verbmake up;  form by stamping, punching, or printing.
  • cola - noun carbonated drink flavored with extract from Kola nuts (`dope' is a southernism in the United States);  large genus of African trees bearing kola nuts.
  • cold - adj. lacking the warmth of life;  of a seeker; far from the object sought;  unconscious from a blow or shock or intoxication;  feeling or showing no enthusiasm;  having lost freshness through passage of time;  used of physical coldness; having a low or inadequate temperature or feeling a sensation of coldness or having been made cold by e.g. ice or refrigeration;  extended meanings; especially of psychological coldness; without human warmth or emotion;  without compunction or human feeling;  sexually unresponsive;  so intense as to be almost uncontrollable;  no longer new; uninteresting;  marked by errorless familiarity;  (color) giving no sensation of warmth;  noun the sensation produced by low temperatures;  a mild viral infection involving the nose and respiratory passages (but not the lungs);  the absence of heat.
  • cold water - noun disparagement of a plan or hope or expectation.
  • colic - noun acute abdominal pain (especially in infants).
  • collaboration - noun act of working jointly;  act of cooperating traitorously with an enemy that is occupying your country.
  • collagen - noun a fibrous scleroprotein in bone and cartilage and tendon and other connective tissue; yields gelatin on boiling.
  • collagenous - adj. relating to or consisting of collagen.
  • collapse - noun a mishap caused by something suddenly falling down or caving in;  an abrupt failure of function or health;  the act of throwing yourself down;  a sudden large decline of business or the prices of stocks (especially one that causes additional failures);  verblose significance, effectiveness, or value;  break down, literally or metaphorically;  cause to burst;  fold or close up;  collapse due to fatigue, an illness, or a sudden attack;  suffer a nervous breakdown; fall apart.
  • collar - noun a figurative restraint;  a band that fits around the neck and is usually folded over;  a band of leather or rope that is placed around an animal's neck as a harness or to identify it;  the stitching that forms the rim of a shoe or boot;  the act of apprehending (especially apprehending a criminal);  necklace that fits tightly around a woman's neck;  verb take into custody;  furnish with a collar;  seize by the neck or collar.
  • collarbone - noun bone linking the scapula and sternum.
  • collateral - adj. descended from a common ancestor but through different lines;  situated or running side by side;  accompany, concomitant;  serving to support or corroborate;  noun a security pledged for the repayment of a loan.
  • colleague - noun a person who is member of your class or profession;  an associate you work with.
  • collect - adj. payable by the recipient on delivery;  adv. make a telephone call or mail a package so that the recipient pays;  noun a short prayer generally preceding the lesson in the Church of Rome or the Church of England;  verb get or bring together;  call for and obtain payment of;  gather or collect;  assemble or get together;  get or gather together.
  • collected - adj. in full control of your faculties;  brought together in one place;  brought together into a group or crowd.
  • collecting - noun the act of gathering something together.
  • collection - noun the act of gathering something together;  a publication containing a variety of works;  several things grouped together or considered as a whole;  request for a sum of money.
  • collective - adj. set up on the principle of collectivism or ownership and production by the workers involved usually under the supervision of a government;  forming a whole or aggregate;  done by or characteristic of individuals acting together;  noun members of a cooperative enterprise.
  • collectively - adv. in conjunction with; combined.
  • collector - noun the electrode in a transistor through which a primary flow of carriers leaves the region between the electrodes;  a crater that has collected cosmic material hitting the earth;  a person who is employed to collect payments (as for rent or taxes);  a person who collects things.
  • college - noun a complex of buildings in which an institution of higher education is housed;  British slang for prison;  the body of faculty and students of a college;  an institution of higher education created to educate and grant degrees; often a part of a university.
  • collegiate - adj. of or resembling or typical of a college or college students.
  • collide - verb crash together with violent impact;  cause to collide;  be incompatible; be or come into conflict.
  • collision - noun a conflict of opposed ideas or attitudes or goals;  an accident resulting from violent impact of a moving object;  (physics) an brief event in which two or more bodies come together.
  • colloid - noun a mixture with properties between those of a solution and fine suspension.
  • colloidal - adj. of or relating to or having the properties of a colloid.
  • colloquially - adv. with the use of colloquial expressions.
  • colon - noun the part of the large intestine between the cecum and the rectum; it extracts moisture from food residues before they are excreted;  a punctuation mark (:) used after a word introducing a series or an example or an explanation (or after the salutation of a business letter);  a port city at the Caribbean entrance to the Panama Canal;  the basic unit of money in Costa Rica; equal to 100 centimos; the basic unit of money in El Salvador; equal to 100 centavos.
  • colonic - adj. of or relating to the colon;  noun a water enema given to flush out the colon.
  • colonization - noun the act of colonizing; the establishment of colonies.
  • colonoscopy - noun visual examination of the colon (with a colonoscope) from the cecum to the rectum; requires sedation.
  • color - adj. having or capable of producing colors;  noun the appearance of objects (or light sources) described in terms of a person's perception of their hue and lightness (or brightness) and saturation;  a visual attribute of things that results from the light they emit or transmit or reflect;  the timbre of a musical sound;  interest and variety and intensity;  (physics) the characteristic of quarks that determines their role in the strong interaction; each flavor of quarks comes in three colors;  a race with skin pigmentation different from the white race (especially Blacks);  an outward or token appearance or form that is deliberately misleading;  any material used for its color;  verb add color to;  gloss or excuse;  decorate with colors; modify or bias;  change color, often in an undesired manner;  affect as in thought or feeling.
  • colorado - noun a state in west central United States in the Rocky Mountains;  an important river in the southwestern United States; rises in the Rocky Mountains of northern Colorado and flows southwest through Utah into Arizona (where it flows through the Grand Canyon) and then southward through the southern tip of Nevada, then forming the border between California and Arizona and finally into Mexico where it empties into the Gulf of California; the main source of water in the southwestern United States;  a river in Texas; flows southeast into the Gulf of Mexico.
  • coloration - noun choice and use of colors (as by an artist); appearance with regard to color;  the timbre of a musical sound.
  • colorectal - adj. relating to or affecting the colon and the rectum.
  • colored - adj. having skin rich in melanin pigments;  having color or a certain color; sometimes used in combination;  (used of color) artificially produced; not natural;  favoring one person or side over another;  noun a United States term for Blacks that is now considered offensive.
  • coloring - noun the act or process of changing the color of something;  a digestible substance used to give color to food;  a visual attribute of things that results from the light they emit or transmit or reflect.
  • colorless - adj. weak in color; not colorful;  lacking in variety and interest.
  • colors - noun a flag that shows its nationality;  a distinguishing emblem.
  • colostrum - noun milky fluid secreted for the first day or two after parturition.
  • column - noun (architeture) a tall cylindrical vertical upright and used to support a structure;  a vertical cylindrical structure standing alone and not supporting anything (such as a monument);  a vertical glass tube used in column chromatography; a mixture is poured in the top and washed through a stationary substance where components of the mixture are adsorbed selectively to form colored bands;  an article giving opinions or perspectives;  a line of (usually military) units following one after another;  a linear array of numbers one above another;  anything tall and relatively thin that approximates the shape of a column or tower.
  • columnar - adj. characterized by columns;  having the form of a column.
  • coma - noun a state of deep and often prolonged unconsciousness; usually the result of disease or injury;  (astronomy) the luminous cloud of particles surrounding the frozen nucleus of a comet; forms as the comet approaches the sun and is warmed;  a usually terminal tuft of hairs especially on a seed.
  • comatose - adj. in a state of deep and usually prolonged unconsciousness; unable to respond to external stimuli;  relating to or associated with a coma.
  • comb - noun the act of drawing a comb through hair;  the fleshy red crest on the head of the domestic fowl and other gallinaceous birds; ciliated comb-like swimming plate of a ctenophore;  a flat device with narrow pointed teeth on one edge; disentangles or arranges hair; any of several tools for straightening fibers;  a fleshy and deeply serrated outgrowth atop the heads of certain birds especially domestic fowl;  verb smoothen and neaten with or as with a comb; search thoroughly;  straighten with a comb.
  • combat - noun an engagement fought between two military forces; the act of fighting; any contest or struggle;  verb battle or contend against in or as if in a battle.
  • combination - noun the act of combining things to form a new whole;  the act of arranging elements into specified groups without regard to order;  a collection of things that have been combined; an assemblage of separate parts or qualities;  an alliance of people or corporations or countries for a special purpose (formerly to achieve some antisocial end but now for general political or economic purposes);  a group of people (often temporary) having a common purpose;  a sequence of numbers or letters that opens a combination lock;  a coordinated sequence of chess moves.
  • combine - noun harvester that heads and threshes and cleans grain while moving across the field;  an occurrence that results in things being united;  a consortium of independent organizations formed to limit competition by controlling the production and distribution of a product or service;  verb add together from different sources;  join for a common purpose or in a common action;  put or add together;  mix together different elements;  gather in a mass, sum, or whole; combine so as to form a whole; mix;  have or possess in combination.
  • combined - adj. made or joined or united into one;  involving the joint activity of two or more.
  • combining - noun an occurrence that results in things being united; the act of combining things to form a new whole.
  • come - noun the thick white fluid containing spermatozoa that is ejaculated by the male genital tract;  verb come to pass; arrive, as in due course;  be found or available;  happen as a result;  reach or enter a state, relation, condition, use, or position;  have a certain priority;  cover a certain distance;  move toward, travel toward something or somebody or approach something or somebody;  be received;  experience orgasm;  to be the product or result;  develop into;  extend or reach;  exist or occur in a certain point in a series; come to one's mind; suggest itself;  reach a destination; arrive by movement or progress;  proceed or get along;  add up in number or quantity;  come under, be classified or included;  come from; be connected by a relationship of blood, for example;  be a native of; come forth.
  • comedian - noun a professional performer who tells jokes and performs comical acts;  an actor in a comedy.
  • comfort - noun a feeling of freedom from worry or disappointment;  a state of being relaxed and feeling no pain;  the act of consoling; giving relief in affliction;  a freedom from financial difficulty that promotes a comfortable state;  verb lessen pain or discomfort; alleviate;  give moral or emotional strength to.
  • comfortable - adj. providing or experiencing physical well-being or relief (`comfy' is informal);  free from stress or conducive to mental ease; having or affording peace of mind;  in fortunate circumstances financially; moderately rich;  sufficient to provide comfort;  more than adequate.
  • coming - adj. yet to come;  of the relatively near future;  noun arrival that has been awaited (especially of something momentous);  the moment of most intense pleasure in sexual intercourse;  the act of drawing spatially closer to something;  the temporal property of becoming nearer in time.
  • command - noun availability for use;  the power or authority to command;  great skillfulness and knowledge of some subject or activity;  an authoritative direction or instruction to do something;  a military unit or region under the control of a single officer;  a position of highest authority;  (computer science) a line of code written as part of a computer program;  verb make someone do something;  be in command of;  demand as one's due;  exercise authoritative control or power over;  look down on.
  • commensal - adj. living in a state of commensalism;  noun either of two different animal or plant species living in close association but not interdependent.
  • commercial - adj. connected with or engaged in or sponsored by or used in commerce or commercial enterprises;  of the kind or quality used in commerce; average or inferior;  of or relating to commercialism;  noun a commercially sponsored ad on radio or television.
  • commercially - adv. in a commercial manner.
  • commingle - verb mix or blend;  mix together different elements.
  • commit - verb cause to be admitted; of persons to an institution; give entirely to a specific person, activity, or cause;  make an investment;  confer a trust upon;  perform an act, usually with a negative connotation.
  • commitment - noun the official act of consigning a person to confinement (as in a prison or mental hospital);  the act of binding yourself (intellectually or emotionally) to a course of action;  an engagement by contract involving financial obligation;  a message that makes a pledge;  the trait of sincere and steadfast fixity of purpose.
  • committed - adj. bound or obligated, as under a pledge to a particular cause, action, or attitude;  associated in an exclusive sexual relationship.
  • common - adj. having no special distinction or quality; widely known or commonly encountered; average or ordinary or usual;  belonging to or participated in by a community as a whole; public;  commonly encountered;  being or characteristic of or appropriate to everyday language;  of or associated with the great masses of people;  to be expected; standard;  common to or shared by two or more parties; lacking refinement or cultivation or taste;  of low or inferior quality or value;  noun a piece of open land for recreational use in an urban area.
  • commonly - adv. under normal conditions.
  • commonplace - adj. not challenging; dull and lacking excitement; completely ordinary and unremarkable;  repeated too often; overfamiliar through overuse;  noun a trite or obvious remark.
  • commons - noun a pasture subject to common use;  class composed of persons lacking noble or knightly or gentle rank;  a piece of open land for recreational use in an urban area.
  • communicate - verb transmit thoughts or feelings;  transmit information;  administer communion; in church;  be in verbal contact; interchange information or ideas;  join or connect;  receive Communion, in the Catholic church;  transfer to another.
  • communicating - noun the activity of communicating; the activity of conveying information.
  • communication - noun something that is communicated by or to or between people or groups;  the activity of communicating; the activity of conveying information;  a connection allowing access between persons or places.
  • communications - noun the discipline that studies the principles of transmiting information and the methods by which it is delivered (as print or radio or television etc.).
  • communicative - adj. able or tending to communicate;  of or relating to communication.
  • community - noun (ecology) a group of interdependent organisms inhabiting the same region and interacting with each other;  a group of people living in a particular local area;  a group of people having ethnic or cultural or religious characteristics in common;  a group of nations having common interests;  common ownership;  agreement as to goals;  the body of people in a learned occupation;  a district where people live; occupied primarily by private residences.
  • compact - adj. closely and firmly united or packed together;  having component parts closely crowded together;  heavy and compact in form or stature;  briefly giving the gist of something;  noun a small cosmetics case with a mirror; to be carried in a woman's purse;  a small and economical car;  a signed written agreement between two or more parties (nations) to perform some action;  verb have the property of being packable or of compacting easily;  squeeze or press together;  make more compact by or as if by pressing; compress into a wad.
  • comparable - adj. able to be compared or worthy of comparison; conforming in every respect.
  • comparative - adj. having significance only in relation to something else;  relating to or based on or involving comparison;  noun the comparative form of an adjective.
  • comparatively - adv. in a relative manner; by comparison to something else.
  • compare - noun qualities that are comparable;  verb examine and note the similarities or differences of;  consider or describe as similar, equal, or analogous;  to form the comparative or superlative form on an adjective or adverb;  be comparable.
  • comparing - noun examining resemblances or differences.
  • comparison - noun examining resemblances or differences; qualities that are comparable;  relation based on similarities and differences.
  • compartment - noun a partitioned section or separate room within a larger enclosed area;  a small space or subdivision for storage.
  • compartmentalize - verb separate into isolated compartments or categories.
  • compatibility - noun capability of existing or performing in harmonious or congenial combination;  a feeling of sympathetic understanding.
  • compatible - adj. able to exist and perform in harmonious or agreeable combination;  capable of being used with or connected to other devices or components without modification;  capable of forming a homogeneous mixture that neither separates nor is altered by chemical interaction;  having similar disposition and tastes;  (of a couple) existing together harmoniously.
  • compensate - verb make payment to; compensate;  make amends for; pay compensation for;  adjust for;  do or give something to somebody in return;  make reparations or amends for;  make up for shortcomings or a feeling of inferiority by exaggerating good qualities.
  • compensated - adj. receiving or eligible for compensation.
  • compensation - noun something (such as money) given or received as payment or reparation (as for a service or loss or injury); (psychiatry) a defense mechanism that conceals your undesirable shortcomings by exaggerating desirable behaviors;  the act of compensating for service or loss or injury.
  • compete - verb compete for something; engage in a contest; measure oneself against others.
  • competence - noun the quality of being adequately or well qualified physically and intellectually.
  • competing - adj. being in competition.
  • competitive - adj. showing a fighting disposition;  subscribing to capitalistic competition;  involving competition or competitiveness.
  • complain - verb make a formal accusation; bring a formal charge; express complaints, discontent, displeasure, or unhappiness.
  • complaining - adj. expressing pain or dissatisfaction of resentment.
  • complaint - noun (civil law) the first pleading of the plaintiff setting out the facts on which the claim for relief is based;  an expression of grievance or resentment;  (formerly) a loud cry (or repeated cries) of pain or rage or sorrow;  (criminal law) a pleading describing some wrong or offense;  an often persistent bodily disorder or disease; a cause for complaining.
  • complement - noun something added to complete or make perfect; either of two parts that mutually complete each other;  a word or phrase used to complete a grammatical construction;  number needed to make up a whole force;  a complete number or quantity; one of a series of enzymes in the blood serum that are part of the immune response;  verb make complete or perfect; supply what is wanting or form the complement to.
  • complementary - adj. of words or propositions so related that each is the negation of the other;  acting as or providing a complement (something that completes the whole);  noun either one of two chromatic colors that when mixed together give white (in the case of lights) or grey (in the case of pigments).
  • complete - adj. having every necessary or normal part or component or step;  having come or been brought to a conclusion; perfect and complete in every respect; having all necessary qualities;  without qualification; used informally as (often pejorative) intensifiers;  highly skilled;  verb bring to a whole, with all the necessary parts or elements;  come or bring to a finish or an end; write all the required information onto a form;  complete a pass; complete or carry out.
  • completed - adj. caught;  (of a marriage) completed by the first act of sexual intercourse after the ceremony;  successfully completed or brought to an end.
  • completely - adv. so as to be complete; with everything necessary; to a complete degree or to the full or entire extent (`whole' is often used informally for `wholly').
  • completing - adj. acting as or providing a complement (something that completes the whole).
  • completion - noun a concluding action;  (American football) a successful forward pass in football.
  • complex - adj. complicated in structure; consisting of interconnected parts;  noun a conceptual whole made up of complicated and related parts;  (psychoanalysis) a combination of emotions and impulses that have been rejected from awareness but still influence a person's behavior;  a compound described in terms of the central atom to which other atoms are bound or coordinated;  a whole structure (as a building) made up of interconnected or related structures.
  • complexion - noun (obsolete) a combination of elements (of dryness and warmth or of the four humors) that was once believed to determine a person's health and temperament;  texture and appearance of the skin of the face;  the coloring of a person's face;  a point of view or general attitude or inclination;  a combination that results from coupling or interlinking;  verb give a certain color to.
  • complexity - noun the quality of being intricate and compounded.
  • compliance - noun happy friendly agreement;  the act of submitting; usually surrendering power to another;  acting according to certain accepted standards;  a disposition or tendency to yield to the will of others.
  • compliant - adj. disposed or willing to comply.
  • complicated - adj. difficult to analyze or understand.
  • complication - noun the act or process of complicating;  a development that complicates a situation;  a situation or condition that is complex or confused;  any disease or disorder that occurs during the course of (or because of) another disease;  puzzling complexity.
  • component - noun an artifact that is one of the individual parts of which a composite entity is made up; especially a part that can be separated from or attached to a system;  an abstract part of something;  something determined in relation to something that includes it.
  • compose - verb put together out of existing material;  write music; calm (someone, especially oneself); make quiet;  form the substance of;  make up plans or basic details for;  produce a literary work.
  • composed - adj. serenely self-possessed and free from agitation especially in times of stress;  made up of individual elements.
  • composing - noun musical creation;  the spatial property resulting from the arrangement of parts in relation to each other and to the whole.
  • composite - adj. consisting of separate interconnected parts;  of or relating to or belonging to the plant family Compositae;  nounconsidered the most highly evolved dicotyledonous plants, characterized by florets arranged in dense heads that resemble single flowers;  a conceptual whole made up of complicated and related parts.
  • composition - noun something that is created by arranging several things to form a unified whole;  the spatial property resulting from the arrangement of parts in relation to each other and to the whole;  an essay (especially one written as an assignment);  a mixture of ingredients;  the act of creating written works;  musical creation;  the way in which someone or something is composed;  art and technique of printing with movable type;  a musical work that has been created.
  • compound - adj. of leaf shapes; of leaves composed of several similar parts or lobes;  consisting of two or more substances or ingredients or elements or parts;  composed of many distinct individuals united to form a whole or colony;  noun an enclosure of residences and other building (especially in the Orient);  a whole formed by a union of two or more elements or parts;  (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight;  verb put or add together; combine so as to form a whole; mix;  create by mixing or combining; calculate principal and interest;  make more intense, stronger, or more marked.
  • comprehension - noun an ability to understand the meaning or importance of something (or the knowledge acquired as a result); the relation of comprising something.
  • comprehensive - adj. including all or everything;  broad in scope; noun an intensive examination testing a student's proficiency in some special field of knowledge.
  • compress - noun a cloth pad or dressing (with or without medication) applied firmly to some part of the body (to relieve discomfort or reduce fever);  verb squeeze or press together;  make more compact by or as if by pressing.
  • compressed - adj. reduced in volume by pressure;  pressed tightly together;  flattened laterally along the whole length (e.g., certain leafstalks or flatfishes).
  • compressibility - noun the property of being able to occupy less space.
  • compressing - noun applying pressure.
  • compression - noun applying pressure;  encoding information while reducing the bandwidth or bits required;  the process or result of becoming smaller or pressed together;  an increase in the density of something.
  • compressor - noun a mechanical device that compresses gasses.
  • comprise - verb form or compose;  include or contain; have as a component;  be composed of.
  • compromise - noun a middle way between two extremes;  an accommodation in which both sides make concessions;  verb settle by concession;  make a compromise; arrive at a compromise; expose or make liable to danger, suspicion, or disrepute.
  • computation - noun the procedure of calculating; determining something by mathematical or logical methods;  problem solving that involves numbers or quantities.
  • computer - noun a machine for performing calculations automatically;  an expert at calculation (or at operating calculating machines).
  • computerized - adj. stored, processed, analyzed, or generated by computer.
  • computing - noun the procedure of calculating; determining something by mathematical or logical methods;  the branch of engineering science that studies (with the aid of computers) computable processes and structures.
  • concave - adj. curving inward.
  • conceivable - adj. within the bounds of what may be conceived within the framework of nature;  capable of being imagined.
  • conceive - verb become pregnant; undergo conception;  judge or regard; look upon; judge;  have the idea for.
  • concentrate - noun a concentrated example;  a concentrated form of a foodstuff; the bulk is reduced by removing water;  the desired mineral that is left after impurities have been removed from mined ore;  verb make (the solvent of a solution) dense or denser;  direct one's attention on something;  draw together or meet in one common center;  cook until very little liquid is left;  be cooked until very little liquid is left;  make more concise;  compress or concentrate;  make central.
  • concentrated - adj. gathered together or made less diffuse;  of or relating to a solution whose dilution has been reduced;  intensely focused;  being the most concentrated solution possible at a given temperature; unable to dissolve still more of a substance;  (of light) transmitted directly from a pointed light source.
  • concentration - noun strengthening the amount of a substance in a unit amount of another substance (as of a solute in a mixture) by removing the other substance;  bringing together military forces; (chemistry) the strength of a solution; number of molecules of a substance in a given volume (expressed as moles/cubic meter);  the spatial property of being crowded together;  complete attention; intense mental effort;  increase in density;  great and constant diligence and attention.
  • concentric - adj. having a common center.
  • concept - noun an abstract or general idea inferred or derived from specific instances.
  • conception - noun the act of becoming pregnant; fertilization of an ovum by a spermatozoon;  the creation of something in the mind;  an abstract or general idea inferred or derived from specific instances; the event that occurred at the beginning of something.
  • conceptus - noun an animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval life.
  • concern - noun something that interests you because it is important or affects you;  something or someone that causes anxiety; a source of unhappiness;  a feeling of sympathy for someone or something; an anxious feeling;  a commercial or industrial enterprise and the people who constitute it;  verb be on the mind of;  have to do with or be relevant to.
  • concerned - adj. feeling or showing worry or solicitude;  involved in or affected by or having a claim to or share in;  in relation (or in regard) to; especially as in the phrases;  culpably involved.
  • concert - noun a performance of music by players or singers not involving theatrical staging;  verb settle by agreement;  contrive (a plan) by mutual agreement.
  • concerted - adj. involving the joint activity of two or more.
  • concha - noun (anatomy) a structure that resembles a shell in shape.
  • conclude - verb bring to a close;  reach a conclusion after a discussion or deliberation;  reach agreement on;  come to a close; decide by reasoning; draw or come to a conclusion.
  • concluded - adj. having come or been brought to a conclusion.
  • conclusion - noun an intuitive assumption;  the last section of a communication;  the proposition arrived at by logical reasoning (such as the proposition that must follow from the major and minor premises of a syllogism);  a final settlement;  the act of making up your mind about something;  the act of ending something;  a position or opinion or judgment reached after consideration;  event whose occurrence ends something;  the temporal end; the concluding time.
  • conclusive - adj. forming an end or termination; especially putting an end to doubt or question;  final and deciding;  expressing finality with no implication of possible change.
  • conclusively - adv. in a conclusive way.
  • concoction - noun the invention of a scheme or story to suit some purpose;  an occurrence of an unusual mixture;  any foodstuff made by combining different ingredients;  the act of creating something (a medicine or drink or soup etc.) by compounding or mixing a variety of components.
  • concomitant - adj. following as a consequence;  noun an event or situation that happens at the same time as or in connection with another.
  • concurrent - adj. occurring or operating at the same time.
  • concurrently - adv. overlapping in duration.
  • condensation - noun (psychoanalysis) an unconscious process whereby two ideas or images combine into a single symbol; especially in dreams;  a shortened version of a written work; atmospheric moisture that has condensed because of cold;  the process of changing from a gaseous to a liquid or solid state;  the act of increasing the density of something;  the process or result of becoming smaller or pressed together.
  • condense - verb undergo condensation; change from a gaseous to a liquid state and fall in drops;  compress or concentrate;  develop due to condensation;  become more compact or concentrated;  cause a gas or vapor to change into a liquid;  remove water from;  make more concise.
  • condensing - noun the act of increasing the density of something.
  • condition - noun the procedure that is varied in order to estimate a variable's effect by comparison with a control condition;  an assumption on which rests the validity or effect of something else; (usually plural) a statement of what is required as part of an agreement;  a mode of being or form of existence of a person or thing;  a state at a particular time;  the state of (good) health (especially in the phrases `in condition' or `in shape' or `out of condition' or `out of shape');  information that should be kept in mind when making a decision;  verb apply conditioner to in order to make smooth and shiny;  put into a better state;  establish a conditioned response;  specify as a condition or requirement in a contract or agreement; make an express demand or provision in an agreement; train by instruction and practice; especially to teach self-control.
  • conditioned - adj. physically fit;  established by conditioning or learning.
  • conditioning - noun a learning process in which an organism's behavior becomes dependent on the occurrence of a stimulus in its environment.
  • conduct - noun manner of acting or controlling yourself;  (behavioral attributes) the way a person behaves toward other people;  verblead, as in the performance of a composition;  lead musicians in the performance of;  transmit or serve as the medium for transmission; direct the course of; manage or control;  take somebody somewhere; behave in a certain manner.
  • conductance - noun a material's capacity to conduct electricity; measured as the reciprocal of electrical resistance.
  • conducting - noun the direction of an orchestra or choir;  the way of administering a business.
  • conduction - noun the transmission of heat or electricity or sound.
  • conductive - adj. having the quality or power of conducting heat or electricity or sound; exhibiting conductivity.
  • conductor - noun a device designed to transmit electricity, heat, etc.;  the person who leads a musical group;  the person who collects fares on a public conveyance;  a substance that readily conducts e.g. electricity and heat.
  • conduit - noun a passage (a pipe or tunnel) through which water or electric wires can pass.
  • condylar - adj. of or relating to or resembling a condyle.
  • condyle - noun a round bump on a bone where it forms a joint with another bone.
  • cone - noun any cone-shaped artifact;  visual receptor cell sensitive to color;  cone-shaped mass of ovule- or spore-bearing scales or bracts;  a shape whose base is a circle and whose sides taper up to a point;  verb make cone-shaped.
  • cone-shaped - adj. relating to or resembling a cone.
  • confer - verb have a conference in order to talk something over; present.
  • conference - noun a discussion among participants who have an agreed (serious) topic;  a prearranged meeting for consultation or exchange of information or discussion (especially one with a formal agenda);  an association of sports teams that organizes matches for its members.
  • conferred - adj. given formally or officially.
  • confident - adj. not liable to error in judgment or action;  having or marked by confidence or assurance;  persuaded of; very sure.
  • configuration - noun an arrangement of parts or elements;  any spatial attributes (especially as defined by outline).
  • confine - verb prevent from leaving or from being removed;  deprive of freedom; take into confinement;  place limits on (extent or access); restrict or confine, "I limit you to two visits to the pub a day";  to close within bounds, limit or hold back from movement;  close in or confine.
  • confined - adj. not free to move about;  not invading healthy tissue; enclosed by a confining fence;  deprived of liberty; especially placed under arrest or restraint;  in captivity.
  • confines - noun a bounded scope.
  • confirm - verb make more firm;  establish or strengthen as with new evidence or facts;  strengthen or make more firm;  administer the rite of confirmation to;  support a person for a position.
  • confirmation - noun a sacrament admitting a baptized person to full participation in the church;  a ceremony held in the synagogue (usually at Pentecost) to admit as adult members of the Jewish community young men and women who have successfully completed a course of study in Judaism;  additional proof that something that was believed (some fact or hypothesis or theory) is correct;  information that confirms or verifies;  making something valid by formally ratifying or confirming it.
  • confirmed - adj. having a habit of long standing;  of persons; not subject to change;  having been established or made firm or received the rite of confirmation.
  • conflicting - adj. on bad terms;  in disagreement.
  • confluence - noun a flowing together;  a place where things merge or flow together (especially rivers);  a coming together of people.
  • conform - verb be similar, be in line with;  adapt or conform oneself to new or different conditions.
  • conformation - noun a symmetrical arrangement of the parts of a thing;  acting according to certain accepted standards;  any spatial attributes (especially as defined by outline).
  • confounding - adj. that confounds or contradicts or confuses.
  • confront - verb deal with (something unpleasant) head on;  present somebody with something, usually to accuse or criticize;  oppose, as in hostility or a competition;  be face to face with.
  • confuse - verb mistake one thing for another;  make unclear, indistinct, or blurred;  make unclear or incomprehensible;  be confusing or perplexing to; cause to be unable to think clearly;  cause to feel embarrassment;  assemble without order or sense.
  • confused - adj. mentally confused; unable to think with clarity or act intelligently;  lacking orderly continuity;  having lost your bearings; confused as to time or place or personal identity;  thrown into a state of disarray or confusion;  perplexed by many conflicting situations or statements; filled with bewilderment.
  • confusing - adj. lacking clarity of meaning; causing confusion or perplexity;  causing confusion or disorientation.
  • confusion - noun a mistake that results from taking one thing to be another;  an act causing a disorderly combination of elements with identities lost and distinctions blended;  a mental state characterized by a lack of clear and orderly thought and behavior;  a feeling of embarrassment that leaves you confused;  disorder resulting from a failure to behave predictably.
  • congenital - adj. present at birth but not necessarily hereditary; acquired during fetal development.
  • congestion - noun excessive crowding;  excessive accumulation of blood or other fluid in a body part.
  • congestive - adj. relating to or affected by an abnormal collection of blood or other fluid.
  • congregate - adj. brought together into a group or crowd;  verbcome together, usually for a purpose.
  • conjugate - adj. of an organic compound; containing two or more double bonds each separated from the other by a single bond; formed by the union of two compounds;  of a pinnate leaflet; having only one pair of leaflets;  joined together especially in a pair or pairs; noun a mixture of two partially miscible liquids A and B produces two conjugate solutions: one of A in B and another of B in A;  verb unite chemically so that the product is easily broken down into the original compounds;  undergo conjugation;  add inflections showing person, number, gender, tense, aspect, etc..
  • conjugation - noun a class of verbs having the same inflectional forms;  the complete set of inflected forms of a verb;  the inflection of verbs;  the act of making or becoming a single unit;  the act of pairing a male and female for reproductive purposes;  the state of being joined together.
  • conjunction - noun an uninflected function word that serves to conjoin words or phrases or clauses or sentences;  (astronomy) apparent meeting or passing of two or more celestial bodies in the same degree of the zodiac;  the grammatical relation between linguistic units (words or phrases or clauses) that are connected by a conjunction;  something that joins or connects;  the temporal property of two things happening at the same time;  the state of being joined together.
  • conjunctiva - noun a transparent membrane covering the eyeball and under surface of the eyelid.
  • connect - verb join for the purpose of communication;  join by means of communication equipment;  land on or hit solidly;  connect, fasten, or put together two or more pieces;  hit or play a ball successfully; establish a rapport or relationship;  be or become joined or united or linked;  be scheduled so as to provide continuing service, as in transportation;  make a logical or causal connection;  plug into an outlet;  establish communication with someone.
  • connected - adj. joined or linked together;  plugged in;  wired together to an alarm system;  stored in, controlled by, or in direct communication with a central computer;  being joined in close association;  related to or accompanying.
  • connecting - adj. syntactically connecting sentences or elements of a sentence.
  • connection - noun shifting from one form of transportation to another;  an instrumentality that connects;  a supplier (especially of narcotics);  (usually plural) a person who is influential and to whom you are connected in some way (as by family or friendship);  a relation between things or events (as in the case of one causing the other or sharing features with it);  a connecting shape;  the state of being connected;  the act of bringing two things into contact (especially for communication);  the process of bringing ideas or events together in memory or imagination.
  • connective - adj. connecting or tending to connect;  noun an instrumentality that connects;  an uninflected function word that serves to conjoin words or phrases or clauses or sentences.
  • connectivity - noun the property of being connected or the degree to which something has connections.
  • connotation - noun an idea that is implied or suggested;  what you must know in order to determine the reference of an expression.
  • conscious - adj. (followed by `of') showing realization or recognition of something;  knowing and perceiving; having awareness of surroundings and sensations and thoughts;  intentionally conceived.
  • consciously - adv. with awareness.
  • consciousness - noun an alert cognitive state in which you are aware of yourself and your situation;  having knowledge of.
  • consecutive - adj. in regular succession without gaps;  one after the other;  successive (without a break);  adv. in a consecutive manner.
  • consensual - adj. existing by consent.
  • consent - noun permission to do something;  verb give an affirmative reply to; respond favorably to.
  • consequence - noun having important effects or influence;  the outcome of an event especially as relative to an individual;  a phenomenon that follows and is caused by some previous phenomenon.
  • consequential - adj. having important issues or results.
  • consequentially - adv. having consequence.
  • consequently - adv. (sentence connectors) because of the reason given;  as a consequence.
  • conservation - noun the preservation and careful management of the environment and of natural resources;  (physics) the maintenance of a certain quantities unchanged during chemical reactions or physical transformations;  an occurrence of improvement by virtue of preventing loss or injury or other change.
  • conserve - noun fruit preserved by cooking with sugar;  verbpreserve with sugar;  use cautiously and frugally;  keep in safety and protect from harm, decay, loss, or destruction;  keep constant through physical or chemical reactions or evolutionary change.
  • conserved - adj. protected from harm or loss.
  • conserves - noun fruit preserved by cooking with sugar.
  • conserving - adj. saving from harm or loss.
  • consider - verb regard or treat with consideration, respect, and esteem;  take into consideration for exemplifying purposes;  think about carefully; weigh;  show consideration for; take into account; judge or regard; look upon; judge;  deem to be;  look at carefully; study mentally;  look at attentively;  give careful consideration to.
  • considerable - adj. large or relatively large in number or amount or extent or degree.
  • considerably - adv. to a great extent or degree.
  • considered - adj. carefully weighed;  resulting from careful thought.
  • consist - verb be composed of;  be consistent in form, tenor, or character; be congruous;  have its essential character; be comprised or contained in; be embodied in;  originate (in).
  • consistency - noun a harmonious uniformity or agreement among things or parts;  (logic) an attribute of a logical system that is so constituted that none of the propositions deducible from the axioms contradict one another;  the property of holding together and retaining its shape;  logical coherence and accordance with the facts.
  • consistent - adj. (sometimes followed by `with') in agreement or consistent or reliable;  the same throughout in structure or composition;  marked by an orderly, logical, and aesthetically consistent relation of parts;  capable of being reproduced.
  • consolidate - verb make firm or secure; strengthen;  make or form into a solid or hardened mass;  form into a solid mass or whole;  unite into one;  bring together into a single whole or system.
  • consonant - adj. involving or characterized by harmony;  in keeping; noun a speech sound that is not a vowel;  a letter of the alphabet standing for a spoken consonant.
  • constant - adj. steadfast in purpose or devotion or affection; continually recurring or continuing without interruption;  uninterrupted in time and indefinitely long continuing;  persistent in occurrence and unvarying in nature;  noun a quantity that does not vary;  a number representing a quantity assumed to have a fixed value in a specified mathematical context.
  • constantly - adv. without interruption;  seemingly uninterrupted; without variation or change.
  • constellation - noun a configuration of stars as seen from the earth; an arrangement of parts or elements.
  • constipation - noun irregular and infrequent or difficult evacuation of the bowels; can be a symptom of intestinal obstruction or diverticulitis;  the act of making something futile and useless (as by routine).
  • constituent - adj. constitutional in the structure of something (especially your physical makeup);  noun (grammar) a word or phrase or clause forming part of a larger grammatical construction;  a member of a constituency; a citizen who is represented in a government by officials for whom he or she votes;  an artifact that is one of the individual parts of which a composite entity is made up; especially a part that can be separated from or attached to a system;  an abstract part of something.
  • constitute - verb form or compose;  set up or lay the groundwork for; create and charge with a task or function;  to compose or represent:"This wall forms the background of the stage setting".
  • constitutive - adj. constitutional in the structure of something (especially your physical makeup).
  • constrain - verb restrict;  hold back.
  • constrained - adj. lacking spontaneity; not natural.
  • constraint - noun the act of constraining; the threat or use of force to control the thoughts or behavior of others;  the state of being physically constrained;  a device that retards something's motion.
  • constrict - verb become tight or as if tight;  squeeze or press together.
  • constricted - adj. inhibited;  drawn together or squeezed physically or by extension psychologically;  especially tense; especially in some dialects.
  • constricting - adj. (of circumstances) tending to constrict freedom; hindering freedom of movement.
  • constriction - noun the action or process of compressing;  a tight feeling in some part of the body;  tight or narrow compression;  a narrowing that reduces the flow through a channel.
  • constrictive - adj. restricting the scope or freedom of action;  (of circumstances) tending to constrict freedom.
  • constrictor - noun any of various large nonvenomous snakes that kill their prey by crushing it in its coils.
  • construct - noun an abstract or general idea inferred or derived from specific instances;  verb draw with suitable instruments and under specified conditions;  make by combining materials and parts; create by organizing and linking ideas, arguments, or concepts; create by linking linguistic units;  reassemble mentally;  put together out of components or parts.
  • construction - noun drawing a figure satisfying certain conditions as part of solving a problem or proving a theorem;  the act of constructing something;  the commercial activity involved in repairing old structures or constructing new ones;  the creation of a construct; the process of combining ideas into a congruous object of thought;  a group of words that form a constituent of a sentence and are considered as a single unit;  an interpretation of a text or action;  a thing constructed; a complex entity constructed of many parts.
  • consult - verb advise professionally;  seek information from;  get or ask advice from;  have a conference in order to talk something over.
  • consume - verb engage fully;  serve oneself to, or consume regularly;  use up (resources or materials);  spend extravagantly; destroy completely;  eat immoderately.
  • consumed - adj. completely used up.
  • consuming - adj. very intense.
  • consumption - noun the act of consuming something;  the process of taking food into the body through the mouth (as by eating); (economics) the utilization of economic goods to satisfy needs or in manufacturing;  involving the lungs with progressive wasting of the body.
  • contact - noun close interaction;  the act of touching physically; (electronics) a junction where things (as two electrical conductors) touch or are in physical contact;  a thin curved glass or plastic lens designed to fit over the cornea in order to correct vision or to deliver medication;  a communicative interaction;  the physical coming together of two or more things;  a person who is in a position to give you special assistance;  the state or condition of touching or of being in immediate proximity;  a channel for communication between groups;  verb be in or establish communication with;  be in direct physical contact with; make contact.
  • contain - verb be capable of holding or containing;  be divisible by; hold back, as of a danger or an enemy; check the expansion or influence of;  lessen the intensity of; temper; hold in restraint; hold or keep within limits;  include or contain; have as a component;  contain or hold; have within.
  • contained - adj. gotten under control;  controlled.
  • container - noun any object that can be used to hold things (especially a large metal boxlike object of standardized dimensions that can be loaded from one form of transport to another).
  • containment - noun the act of containing; keeping something from spreading;  (physics) a system designed to prevent the accidental release of radioactive material from a reactor;  a policy of creating strategic alliances in order to check the expansion of a hostile power or ideology or to force it to negotiate peacefully.
  • contaminated - adj. rendered unwholesome by contaminants and pollution;  corrupted by contact or association;  contaminated with infecting organisms.
  • contamination - noun the act of contaminating or polluting; including (either intentionally or accidentally) unwanted substances or factors;  the state of being contaminated;  a substance that contaminates.
  • contemporary - adj. belonging to the present time;  characteristic of the present;  occurring in the same period of time;  noun a person of nearly the same age as another.
  • content - adj. satisfied or showing satisfaction with things as they are;  noun the sum or range of what has been perceived, discovered, or learned;  everything that is included in a collection;  the proportion of a substance that is contained in a mixture or alloy etc.;  something (a person or object or scene) selected by an artist or photographer for graphic representation;  what a communication that is about something is about;  the amount that can be contained;  the state of being contented with your situation in life;  verb satisfy in a limited way;  make content.
  • contents - noun a list of divisions (chapters or articles) and the pages on which they start.
  • context - noun discourse that surrounds a language unit and helps to determine its interpretation;  the set of facts or circumstances that surround a situation or event.
  • continence - noun the exercise of self constraint in sexual matters; voluntary control over urinary and fecal discharge.
  • continual - adj. seemingly without interruption; chiefly restricted to what recurs regularly or frequently in a prolonged and closely spaced series;  `continual' (meaning seemingly uninterrupted) is often used interchangeably with `continuous' (meaning without interruption).
  • continually - adv. seemingly without interruption.
  • continuation - noun the act of continuing an activity without interruption;  the consequence of being lengthened in duration;  a Gestalt principle of organization holding that there is an innate tendency to perceive a line as continuing its established direction;  a part added to a book or play that continues and extends it.
  • continue - verb exist over a prolonged period of time;  continue talking;  keep or maintain in unaltered condition; cause to remain or last;  continue a certain state, condition, or activity;  continue after an interruption;  do something repeatedly and showing no intention to stop;  move ahead; travel onward in time or space;  allow to remain in a place or position;  span an interval of distance, space or time; continue in a place, position, or situation.
  • continued - adj. without stop or interruption.
  • continuing - adj. remaining in force or being carried on without letup.
  • continuity - noun the property of a continuous and connected period of time;  a detailed script used in making a film in order to avoid discontinuities from shot to shot;  uninterrupted connection or union.
  • continuous - adj. continuing in time or space without interruption;  of a function or curve; extending without break or irregularity.
  • continuously - adv. at every point;  with unflagging resolve.
  • contort - verb twist and press out of shape.
  • contour - noun a feature (or the order or arrangement of features) of anything having a complex structure;  a line drawn on a map connecting points of equal height;  any spatial attributes (especially as defined by outline);  verb form the contours of.
  • contract - noun a variety of bridge in which the bidder receives points toward game only for the number of tricks he bid;  a binding agreement between two or more persons that is enforceable by law; (contract bridge) the highest bid becomes the contract setting the number of tricks that the bidder must make;  verb be stricken by an illness, fall victim to an illness;  enter into a contractual arrangement; make smaller;  become smaller or draw together;  reduce in scope while retaining essential elements;  make or become more narrow or restricted;  compress or concentrate;  squeeze or press together; engage by written agreement.
  • contracted - adj. reduced in size or pulled together.
  • contractile - adj. capable of contracting or being contracted.
  • contractility - noun the capability or quality of shrinking or contracting, especially by muscle fibers and even some other forms of living matter.
  • contracting - noun becoming infected.
  • contraction - noun the act of decreasing (something) in size or volume or quantity or scope;  (physiology) a shortening or tensing of a part or organ (especially of a muscle or muscle fiber);  a word formed from two or more words by omitting or combining some sounds;  the process or result of becoming smaller or pressed together.
  • contradictory - adj. unable to be both true at the same time;  of words or propositions so related that both cannot be true and both cannot be false;  in disagreement;  that confounds or contradicts or confuses;  noun two propositions are contradictories if both cannot be true (or both cannot be false) at the same time.
  • contralateral - adj. on or relating to the opposite side (of the body).
  • contrary - adj. resistant to guidance or discipline;  very opposed in nature or character or purpose;  of words or propositions so related that both cannot be true but both may be false;  in an opposing direction;  noun a logical relation such that two propositions are contraries if both cannot be true but both can be false;  exact opposition;  a relation of direct opposition.
  • contrast - noun the act of distinguishing by comparing differences; the range of optical density and tone on a photographic negative or print (or the extent to which adjacent areas on a television screen differ in brightness);  the perceptual effect of the juxtaposition of very different colors;  the opposition or dissimilarity of things that are compared;  a conceptual separation or distinction;  verb put in opposition to show or emphasize differences;  to show differences when compared; be different.
  • contrasting - adj. strikingly different; tending to contrast.
  • contribute - verb contribute to some cause;  be conducive to; provide;  bestow a quality on.
  • contributing - adj. tending to bring about; being partly responsible for.
  • contribution - noun any one of a number of individual efforts in a common endeavor;  act of giving in common with others for a common purpose especially to a charity;  a writing for publication especially one of a collection of writings as an article or story;  an amount of money contributed;  a voluntary gift (as of money or service or ideas) made to some worthwhile cause.
  • contributor - noun a writer whose work is published in a newspaper or magazine or as part of a book;  someone who contributes (or promises to contribute) a sum of money.
  • control - noun the activity of managing or exerting control over something;  (physiology) regulation or maintenance of a function or action or reflex etc;  a mechanism that controls the operation of a machine;  power to direct or determine;  the economic policy of controlling or limiting or curbing prices or wages etc.;  a spiritual agency that is assumed to assist the medium during a seance;  a relation of constraint of one entity (thing or person or group) by another;  discipline in personal and social activities;  great skillfulness and knowledge of some subject or activity;  a standard against which other conditions can be compared in a scientific experiment;  the state that exists when one person or group has power over another; verb verify by using a duplicate register for comparison;  exercise authoritative control or power over;  lessen the intensity of; temper; hold in restraint; hold or keep within limits;  verify or regulate by conducting a parallel experiment or comparing with another standard, of scientific experiments;  have a firm understanding or knowledge of; be on top of;  be careful or certain to do something; make certain of something;  handle and cause to function;  control (others or oneself) or influence skillfully, usually to one's advantage.
  • controlled - adj. restrained or managed or kept within certain bounds;  curbed or regulated.
  • controlling - adj. able to control or determine policy.
  • controversial - adj. marked by or capable of arousing controversy.
  • conundrum - noun a difficult problem.
  • convection - noun the transfer of heat through a fluid (liquid or gas) caused by molecular motion;  (meteorology) the vertical movement of heat or other properties by massive motion within the atmosphere.
  • convenience - noun the quality of being useful and convenient;  the state of being suitable or opportune;  a device or control that is very useful for a particular job;  a toilet that is available to the public.
  • convenient - adj. easy to reach;  suited to your comfort or purpose or needs;  large and roomy (`convenient' is archaic in this sense).
  • conveniently - adv. in a convenient manner.
  • convention - noun the act of convening;  something regarded as a normative example;  (diplomacy) an international agreement;  a large formal assembly;  orthodoxy as a consequence of being conventional.
  • conventional - adj. following accepted customs and proprieties; unimaginative and conformist;  (weapons) using energy for propulsion or destruction that is not nuclear energy;  in accord with or being a tradition or practice accepted from the past;  conforming with accepted standards;  represented in simplified or symbolic form; rigidly formal or bound by convention.
  • converge - verb come together so as to form a single product;  move or draw together at a certain location;  be adjacent or come together; approach a limit as the number of terms increases without limit.
  • convergence - noun the act of converging (coming closer);  the approach of an infinite series to a finite limit;  the occurrence of two or more things coming together;  a representation of common ground between theories or phenomena.
  • convergent - adj. tending to come together from different directions.
  • conversation - noun the use of speech for informal exchange of views or ideas or information etc..
  • conversely - adv. with the terms of the relation reversed.
  • conversion - noun a spiritual enlightenment causing a person to lead a new life;  a successful free throw or try for point after a touchdown;  the act of changing from one use or function or purpose to another;  act of exchanging one type of money or security for another;  a change in the units or form of an expression: "conversion from Fahrenheit to Centigrade";  interchange of subject and predicate of a proposition;  a change of religion;  an event that results in a transformation;  (psychiatry) a defense mechanism represses emotional conflicts which are then converted into physical symptoms that have no organic basis.
  • convert - noun a person who has been converted to another religious or political belief;  verb change in nature, purpose, or function; undergo a chemical change;  change the nature, purpose, or function of something;  change from one system to another or to a new plan or policy;  change religious beliefs, or adopt a religious belief;  cause to adopt a new or different faith;  make (someone) agree, understand, or realize the truth or validity of something;  score (a spare);  complete successfully;  score an extra point or points after touchdown by kicking the ball through the uprights or advancing the ball into the end zone;  exchange or replace with another, usually of the same kind or category;  exchange a penalty for a less severe one.
  • converted - adj. spiritually reborn or converted.
  • convex - adj. curving or bulging outward.
  • convey - verb make known; pass on, of information;  transmit a title or property;  transfer to another;  serve as a means for expressing something;  go or come after and bring or take back;  take something or somebody with oneself somewhere;  transmit or serve as the medium for transmission.
  • conveyed - adj. sent or carried from one place to another.
  • conveying - noun act of transferring property title from one person to another.
  • convoluted - adj. rolled or coiled together;  highly complex or intricate.
  • convolution - noun the action of coiling or twisting or winding together;  a convex fold or elevation in the surface of the brain;  the shape of something rotating rapidly.
  • cook - noun someone who cooks food;  English navigator who claimed the east coast of Australia for Britain and discovered several Pacific islands (1728-1779);  verb transform and make suitable for consumption by heating;  transform by heating;  prepare for eating by applying heat;  prepare a hot meal;  fake or falsify.
  • cool - adj. marked by calm self-control (especially in trying circumstances); unemotional;  fashionable and attractive at the time; often skilled or socially adept;  (used of a number or sum) without exaggeration or qualification;  neither warm nor very cold; giving relief from heat;  psychologically cool and unenthusiastic; unfriendly or unresponsive or showing dislike;  (color) inducing the impression of coolness; used especially of greens and blues and violets;  nounthe quality of being at a refreshingly low temperature;  great coolness and composure under strain;  verb loose heat;  lose intensity;  make cool or cooler.
  • cooler - noun a refrigerator for cooling liquids;  a cell for violent prisoners;  an iced drink especially white wine and fruit juice.
  • cooling - noun the process of becoming cooler; a falling temperature;  a mechanism for keeping something cool.
  • cooperate - verb work together on a common enterprise of project.
  • cooperation - noun the practice of cooperating;  joint operation or action.
  • cooperatively - adv. in close cooperation.
  • coordinate - adj. of equal importance, rank, or degree;  noun a number that identifies a position relative to an axis;  verb bring into common action, movement, or condition;  be co-ordinated;  bring order and organization to;  bring (components or parts) into proper or desirable coordination correlation.
  • coordinated - adj. being dexterous in the use of more than one set of muscle movements;  operating as a unit;  intentionally matched.
  • coordinating - adj. serving to connect two grammatical constituents of identical construction.
  • coordination - noun the regulation of diverse elements into an integrated and harmonious operation;  the skillful and effective interaction of movements;  the grammatical relation of two constituents having the same grammatical form.
  • cope - noun brick that is laid sideways at the top of a wall;  verbcome to terms or deal successfully with.
  • copied - adj. derived by copying something else; especially by following lines seen through a transparent sheet.
  • copious - adj. large in number or quantity (especially of discourse); affording an abundant supply.
  • copper - noun any of various small butterflies of the family Lycaenidae having coppery wings;  a reddish-brown color resembling the color of polished copper;  a copper penny;  a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor;  uncomplimentary terms for a policeman;  verb coat with a layer of copper.
  • copulation - noun the act of sexual procreation between a man and a woman; the man's penis is inserted into the woman's vagina and excited until orgasm and ejaculation occur.
  • copy - noun a secondary representation of an original;  matter to be printed; exclusive of graphical materials;  material suitable for a journalistic account;  a reproduction of a written record (e.g. of a legal or school record);  verb make a replica of;  copy down as is; reproduce or make an exact copy of;  reproduce someone's behavior or looks.
  • copying - noun an act of copying.
  • cord - noun a line made of twisted fibers or threads;  a cut pile fabric with vertical ribs; usually made of cotton;  a light insulated conductor for household use;  a unit of amount of wood cut for burning; 128 cubic feet;  verb bind or tie with a cord;  stack in cords.
  • cords - noun cotton trousers made of corduroy cloth.
  • core - noun a bar of magnetic material (as soft iron) that passes through a coil and serves to increase the inductance of the coil;  the chamber of a nuclear reactor containing the fissile material where the reaction takes place;  a small group of indispensable persons or things;  the center of an object;  the central part of the Earth;  a cylindrical sample of soil or rock obtained with a hollow drill;  the choicest or most essential or most vital part of some idea or experience;  the central meaning or theme of a speech or literary work;  an organization founded by James Leonard Farmer in 1942 to work for racial equality;  verb remove the core or center from.
  • cork - noun the plug in the mouth of a bottle (especially a wine bottle);  a port city in southern Ireland;  outer bark of the cork oak; used for stoppers for bottles etc.;  a small float usually made of cork; attached to a fishing line;  (botany) outer tissue of bark; a protective layer of dead cells;  verb stuff with cork;  close a bottle with a cork.
  • corkscrew - noun a bottle opener that pulls corks;  verb move in a spiral or zigzag course.
  • corn - noun something sentimental or trite;  ears of corn grown for human food;  tall annual cereal grass bearing kernels on large ears: widely cultivated in America in many varieties; the principal cereal in Mexico and Central and South America since pre-Columbian times; (Great Britain) any of various cereal plants (especially the dominant crop of the region--wheat in England or oats in Scotland and Ireland);  the dried grains or kernels or corn used as animal feed or ground for meal;  a hard thickening of the skin (especially on the top or sides of the toes) caused by the pressure of ill-fitting shoes; whiskey distilled from a mash of not less than 80 percent corn;  verbpreserve with salt;  feed (cattle) with corn.
  • cornea - noun transparent anterior portion of the outer covering of the eye; it covers the lens and iris and is continuous with the sclera.
  • corneal - adj. of or related to the cornea.
  • cornell - noun United States businessman who unified the telegraph system in the United States and who in 1865 (with Andrew D. White) founded Cornell University (1807-1874);  United States actress noted for her performances in Broadway plays (1893-1974).
  • corner - noun the intersection of two streets;  (architecture) solid exterior angle of a building; especially one formed by a cornerstone; an interior angle formed be two meeting walls;  the point where two lines meet or intersect;  a place off to the side of an area;  a remote area;  the point where three areas or surfaces meet or intersect;  a projecting part where two sides or edges meet;  a predicament from which a skillful or graceful escape is impossible;  a temporary monopoly on a kind of commercial trade;  a small concavity;  verbturn a corner;  force a person or an animal into a position from which he cannot escape;  gain control over.
  • corneum - noun the outermost layer of the epidermis consisting of dead cells that slough off.
  • corona - noun a long cigar with blunt ends;  (anatomy) any structure that resembles a crown in shape;  one or more circles of light seen around a luminous object;  (botany) the trumpet-shaped or cup-shaped outgrowth of the corolla of a daffodil or narcissus flower;  the outermost region of the sun's atmosphere; visible as a white halo during a solar eclipse;  an electrical discharge accompanied by ionization of surrounding atmosphere.
  • coronal - noun flower arrangement consisting of a circular band of foliage or flowers for ornamental purposes.
  • coronary - adj. surrounding like a crown (especially of the blood vessels surrounding the heart);  noun obstruction of blood flow in a coronary artery by a blood clot (thrombus).
  • corpus - noun the main part of an organ or other bodily structure;  a collection of writings;  capital as contrasted with the income derived from it.
  • corpuscle - noun either of two types of cells (erythrocytes and leukocytes) and sometimes including platelets;  (nontechnical usage) a tiny piece of anything.
  • correct - adj. free from error; especially conforming to fact or truth; socially right or correct;  in accord with accepted standards of usage or procedure;  correct in opinion or judgment;  verb treat a defect; make right or correct;  alter or regulate so as to achieve accuracy or conform to a standard;  censure severely;  go down in value;  make reparations or amends for;  punish in order to gain control or enforce obedience;  adjust for.
  • corrected - adj. having something undesirable neutralized; punished for misbehavior.
  • correction - noun the act of offering an improvement to replace a mistake; setting right;  treatment of a specific defect;  a drop in stock market activity or stock prices following a period of increases; something substituted for an error;  a rebuke for making a mistake;  a quantity that is added or subtracted in order to increase the accuracy of a scientific measure;  the act of punishing.
  • corrections - noun the social control of offenders through a system of imprisonment and rehabilitation and probation and parole;  the department of local government that is responsible for managing the treatment of convicted offenders.
  • corrective - adj. tending or intended to correct or counteract or restore to a normal condition;  designed to promote discipline;  nouna device for treating injury or disease.
  • correctly - adv. in a correct manner.
  • correlate - adj. mutually related;  noun either of two correlated variables;  verb bring into a mutual, complementary, or reciprocal relation;  to bear a reciprocal or mutual relation.
  • correlated - adj. mutually related.
  • correlation - noun a statistical relation between two or more variables such that systematic changes in the value of one variable are accompanied by systematic changes in the other;  a reciprocal relation between two or more things;  a statistic representing how closely two variables co-vary; it can vary from -1 (perfect negative correlation) through 0 (no correlation) to +1 (perfect positive correlation).
  • correspond - verb exchange messages;  be equivalent or parallel, in mathematics;  be compatible, similar or consistent; coincide in their characteristics;  take the place of or be parallel or equivalent to.
  • correspondence - noun communication by the exchange of letters; compatibility of observations;  similarity by virtue of corresponding; (mathematics) an attribute of a shape or relation; exact reflection of form on opposite sides of a dividing line or plane;  a function such that for every element of one set there is a unique element of another set;  the relation of corresponding in degree or size or amount.
  • corresponding - adj. agreeing in amount, magnitude, or degree; accompanying;  similar especially in position or purpose;  conforming in every respect.
  • correspondingly - adv. in a corresponding manner.
  • corrosive - adj. of a substance, especially a strong acid; capable of destroying or eating away by chemical action;  noun a substance having the tendency to cause corrosion (such a strong acids or alkali).
  • corrugated - adj. shaped into alternating parallel grooves and ridges.
  • cortex - noun the tissue forming the outer layer of an organ or structure in plant or animal;  the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum.
  • cortical - adj. of or relating to a cortex.
  • corticosteroid - noun a steroid hormone produced by the adrenal cortex or synthesized; administered as drugs they reduce swelling and decrease the body's immune response.
  • corticosterone - noun secreted by the adrenal cortex; involved in regulating water and electrolyte balance in the body.
  • corticotropin - noun a hormone produced by the anterior pituitary gland that stimulates the adrenal cortex.
  • cortisol - noun an adrenal-cortex hormone (trade names Hydrocortone or Cortef) that is active in carbohydrate and protein metabolism.
  • cortisone - noun a corticosteroid hormone (trade name Cortone Acetate) normally produced by the adrenal cortex; is converted to hydrocortisone.
  • cosmetic - adj. serving an aesthetic purpose in beautifying the body;  serving an esthetic rather than a useful purpose;  noun a toiletry designed to beautify the body.
  • cosmetically - adv. for cosmetic purposes to improve appearance.
  • cost - noun the total spent for goods or services including money and time and labor;  the property of having material worth (often indicated by the amount of money something would bring if sold); value measured by what must be given or done or undergone to obtain something;  verb require to lose, suffer, or sacrifice;  be priced at.
  • costal - adj. of or relating to or near a rib.
  • costs - noun pecuniary reimbursement to the winning party for the expenses of litigation.
  • cotton - noun fabric woven from cotton fibers;  thread made of cotton fibers;  erect bushy mallow plant or small tree bearing bolls containing seeds with many long hairy fibers;  soft silky fibers from cotton plants in their raw state;  verb take a liking to.
  • cough - noun the act of exhaling air suddenly with a noise;  sudden expulsion of air from the lungs that clears the air passages; a common symptom of upper respiratory infection or bronchitis or pneumonia or tuberculosis;  verb exhale abruptly, as when one has a chest cold or congestion.
  • coughing - noun the act of exhaling air suddenly with a noise; sudden expulsion of air from the lungs that clears the air passages; a common symptom of upper respiratory infection or bronchitis or pneumonia or tuberculosis.
  • counseling - noun something that provides direction or advice as to a decision or course of action.
  • counselor - noun someone who gives advice about problems; someone who has supervisory duties at a summer camp;  a lawyer who pleads cases in court.
  • count - noun the act of counting;  a nobleman (in various countries) having rank equal to a British earl;  the total number counted;  verbinclude as if by counting;  have faith or confidence in;  name or recite the numbers;  determine the number or amount of;  have weight; have import, carry weight;  put into a group;  take account of;  show consideration for; take into account.
  • counteract - verb oppose and mitigate the effects of by contrary actions;  destroy property or hinder normal operations;  act in opposition to;  oppose or check by a counteraction.
  • counterbalance - noun a compensating equivalent;  a weight that balances another weight;  equality of distribution;  verb oppose and mitigate the effects of by contrary actions;  oppose with equal weight or force;  adjust for.
  • counterbalancing - adj. serving to equilibrate.
  • counterblow - noun a return blow; a retaliatory blow.
  • countercurrent - noun actions counter to the main group activity;  a stretch of turbulent water in a river or the sea caused by one current flowing into or across another current.
  • counterpart - noun a duplicate copy;  a person or thing having the same function or characteristics as another.
  • counterweight - noun a weight that balances another weight;  verbconstitute a counterweight or counterbalance to.
  • counting - noun the act of counting.
  • countless - adj. too numerous to be counted.
  • country - noun the territory occupied by a nation;  an area outside of cities and towns;  the people who live in a nation or country;  a politically organized body of people under a single government;  a particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography).
  • county - noun a region created by territorial division for the purpose of local government;  the largest administrative district within a state.
  • couple - noun a pair who associate with one another;  a pair of people who live together;  (physics) something joined by two equal and opposite forces that act along parallel lines;  two items of the same kind;  a small indefinite number;  verb link together;  bring two objects, ideas, or people together;  make love;  form a pair or pairs.
  • coupled - adj. connected by a link, as railway cars or trailer trucks; joined together especially in a pair or pairs.
  • couplet - noun a stanza consisting of two successive lines of verse; usually rhymed;  two items of the same kind.
  • coupling - noun the act of pairing a male and female for reproductive purposes;  a mechanical device that serves to connect the ends of adjacent objects;  a connection (like a clamp or vise) between two things so they move together.
  • course - adv. as might be expected;  noun a mode of action; education imparted in a series of lessons or meetings;  facility consisting of a circumscribed area of land or water laid out for a sport;  (construction) a layer of masonry;  part of a meal served at one time;  a connected series of events or actions or developments; general line of orientation;  a line or route along which something travels or moves;  verb hunt with hounds;  move swiftly through or over;  move along, of liquids.
  • court - noun respectful deference;  an area wholly or partly surrounded by walls or buildings;  a specially marked horizontal area within which a game is played;  a room in which a lawcourt sits;  the residence of a sovereign or nobleman;  the sovereign and his advisers who are the governing power of a state;  the family and retinue of a sovereign or prince;  an assembly (including one or more judges) to conduct judicial business;  Australian woman tennis player who won many major championships (born in 1947);  a hotel for motorists; provides direct access from rooms to parking area;  verbengage in social activities leading to marriage;  make amorous advances towards;  seek someone's favor.
  • covalent - adj. of or relating to or characterized by covalence.
  • cover - noun fire that makes it difficult for the enemy to fire on your own individuals or formations;  the act of concealing the existence of something by obstructing the view of it;  a false identity and background (especially one created for an undercover agent);  a recording of a song that was first recorded or made popular by somebody else;  the protective covering on the front, back, and spine of a book;  bedding that keeps a person warm in bed;  a covering that serves to conceal or shelter something;  covering for a hole (especially a hole in the top of a container);  a natural object that covers or envelops;  a fixed charge by a restaurant or night club over and above the charge for food and drink;  verb clothe, as if for protection from the elements;  protect by insurance;  maintain a check on; especially by patrolling;  deal with verbally or in some form of artistic expression;  hold within range of an aimed firearm;  protect or defend (a position in a game);  be responsible for guarding an opponent in a game;  play a higher card than the one previously played;  form a cover over;  provide with a covering or cause to be covered;  spread over a surface to conceal or protect;  hide from view or knowledge;  be sufficient to meet, defray, or offset the charge or cost of;  to take an action to protect against future problems;  help out by taking someone's place and temporarily assuming his responsibilities;  invest with a large or excessive amount of something;  make up for shortcomings or a feeling of inferiority by exaggerating good qualities;  provide for;  span an interval of distance, space or time;  sit on (eggs);  be responsible for reporting the details of, as in journalism;  put something on top of something else;  copulate with a female, used especially of horses;  cover as if with a shroud;  travel across or pass over;  include in scope; include as part of something broader; have as one's sphere or territory.
  • coverage - noun the extent to which something is covered;  the news as presented by reporters for newspapers or radio or television;  the total amount and type of insurance carried.
  • covered - adj. overlaid or spread or topped with or enclosed within something; sometimes used as a combining form.
  • covering - noun the act of protecting something by covering it;  an artifact that covers something else (usually to protect or shelter or conceal it);  a natural object that covers or envelops;  the work of applying something;  the act of concealing the existence of something by obstructing the view of it.
  • cow - noun mature female of mammals of which the male is called `bull';  female of domestic cattle: "`moo-cow' is a child's term";  a large unpleasant woman;  verb subdue, restrain, or overcome by affecting with a feeling of awe; frighten (as with threats).
  • cowper - noun English poet who wrote hymns and poetry about nature (1731-1800);  English surgeon who discovered Cowper's gland (1666-1709).
  • cows - noun domesticated bovine animals as a group regardless of sex or age.
  • cox - noun the helmsman of a ship's boat or a racing crew;  either of two related enzymes that control the production of prostaglandins and are blocked by aspirin;  verb act as the coxswain, in a boat race.
  • cpr - noun an emergency procedure consisting of external cardiac massage and artificial respiration; the first treatment for a person who has collapsed and has no pulse and has stopped breathing; attempts to restore circulation of the blood and prevent death or brain damage due to lack of oxygen.
  • cracked - adj. informal or slang terms for mentally irregular;  of paint or varnish; having the appearance of alligator hide;  used of skin roughened as a result of cold or exposure.
  • cracking - adj. very good;  noun the process whereby heavy molecules of naphtha or petroleum are broken down into hydrocarbons of lower molecular weight (especially in the oil-refining process);  the act of cracking something;  a sudden sharp noise.
  • crane - noun large long-necked wading bird of marshes and plains in many parts of the world;  lifts and moves heavy objects; lifting tackle is suspended from a pivoted boom that rotates around a vertical axis;  United States poet (1899-1932);  United States writer (1871-1900);  a small constellation in the southern hemisphere near Phoenix;  verb stretch (the neck) so as to see better.
  • cranial - adj. of or relating to the cranium which encloses the brain.
  • cranium - noun the part of the skull that encloses the brain.
  • crawling - noun a slow mode of locomotion on hands and knees or dragging the body.
  • cream - noun toiletry consisting of any of various substances in the form of a thick liquid that have a soothing and moisturizing effect when applied to the skin;  the part of milk containing the butterfat;  the best people or things in a group;  verb add cream to one's coffee, for example;  put on cream, as on one's face or body;  beat thoroughly and conclusively in a competition or fight;  make creamy by beating; remove from the surface.
  • creamy - adj. of the color of cream;  thick like cream.
  • crease - noun a Malayan dagger with a wavy blade;  a slight depression in the smoothness of a surface;  an angular or rounded shape made by folding;  verb become wrinkled or crumpled or creased;  scrape gently;  make wrinkled or creased;  make wrinkles or creases into a smooth surface.
  • create - verb create by artistic means;  pursue a creative activity; be engaged in a creative activity;  bring into existence;  invest with a new title, office, or rank;  make or cause to be or to become;  create or manufacture a man-made product.
  • creatine - noun an amino acid that does not occur in proteins but is found in the muscle tissue of vertebrates both in the free form and as phosphocreatine; supplies energy for muscle contraction.
  • creation - noun (theology) God's act of bringing the universe into existence;  the human act of creating;  an artifact that has been brought into existence by someone;  the event that occurred at the beginning of something;  the act of starting something for the first time; introducing something new;  everything that exists anywhere.
  • creative - adj. promoting construction or creation;  having the ability or power to create.
  • creator - noun a person who grows or makes or invents things; terms referring to the Judeo-Christian God.
  • credentials - noun a document attesting to the truth of certain stated facts.
  • credit - noun used in the phrase `to your credit' in order to indicate an achievement deserving praise;  recognition by a college or university that a course of studies has been successfully completed; typically measured in semester hours;  an entry on a list of persons who contributed to a film or written work;  arrangement for deferred payment for goods and services;  money available for a client to borrow;  an accounting entry acknowledging income or capital items; approval;  a short note recognizing a source of information or of a quoted passage;  verb have trust in; trust in the truth or veracity of; give someone credit for something;  accounting: enter as credit;  give credit for.
  • credited - adj. (usually followed by `to') given credit for.
  • creek - noun any member of the Creek Confederacy (especially the Muskogee) formerly living in Georgia and Alabama but now chiefly in Oklahoma;  a natural stream of water smaller than a river (and often a tributary of a river).
  • crescent - adj. resembling the new moon in shape;  noun any shape resembling the curved shape of the moon in its first or last quarters.
  • crescent-shaped - adj. resembling the new moon in shape.
  • crest - noun a showy growth of e.g. feathers or skin on the head of a bird or other animal;  (heraldry) in medieval times, an emblem used to decorate a helmet;  the top line of a hill, mountain, or wave;  the center of a cambered road;  the top point of a mountain or hill;  verbreach a high point;  lie at the top of.
  • cretinism - noun severe hypothyroidism resulting in physical and mental stunting.
  • crew - noun the men who man a ship or aircraft;  the team of men manning a racing shell;  an organized group of workmen;  an informal body of friends;  verb serve as a crew member on.
  • crime - noun (criminal law) an act punishable by law; usually considered an evil act;  an evil act not necessarily punishable by law.
  • criminal - adj. guilty of crime or serious offense;  involving or being or having the nature of a crime;  bringing or deserving severe rebuke or censure;  noun someone who has committed (or been legally convicted of) a crime.
  • crippling - adj. that cripples or disables or incapacitates.
  • crisis - noun a crucial stage or turning point in the course of something;  an unstable situation of extreme danger or difficulty.
  • crisscross - adj. marked with crossing lines;  adv. crossing one another in opposite directions;  noun a marking that consists of lines that cross each other;  verb mark with a pattern of crossing lines; mark with or consist of a pattern of crossed lines;  cross in a pattern, often random.
  • crisscrossed - adj. marked with crossing lines.
  • criterion - noun the ideal in terms of which something can be judged;  a basis for comparison; a reference point against which other things can be evaluated.
  • critical - adj. marked by a tendency to find and call attention to errors and flaws;  characterized by careful evaluation and judgment; being in or verging on a state of crisis or emergency;  at or of a point at which a property or phenomenon suffers an abrupt change especially having enough mass to sustain a chain reaction;  forming or having the nature of a turning point or crisis;  urgently needed; absolutely necessary;  of or involving or characteristic of critics or criticism.
  • critically - adv. in a critical manner.
  • crohn - noun United States physician who specialized in diseases of the intestines; he was the first to describe regional ileitis which is now known as Crohn's disease (1884-1983).
  • cross - adj. extending or lying across; in a crosswise direction; at right angles to the long axis;  perversely irritable;  noun a representation of the structure on which Jesus was crucified; used as an emblem of Christianity or in heraldry;  a wooden structure consisting of an upright post with a transverse piece;  any affliction that causes great suffering;  (genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybrids;  an organism that is the offspring of genetically dissimilar parents or stock; especially offspring produced by breeding plants or animals of different varieties or breeds or species;  a marking that consists of lines that cross each other;  verb trace a line through or across;  meet and pass;  fold so as to resemble a cross;  to cover or extend over an area or time period;  breed animals or plants using parents of different races and varieties;  travel across or pass over; meet at a point;  hinder or prevent (the efforts, plans, or desires) of.
  • cross-legged - adv. with the legs crossed.
  • cross-link - noun a side bond that links two adjacent chains of atoms in a complex molecule;  verb join by creating covalent bonds (of adjacent chains of a polymer or protein).
  • cross-section - adj. representing a plane made by cutting across something at right angles to its length.
  • cross-sectional - adj. of or relating to a cross section;  representing a plane made by cutting across something at right angles to its length.
  • crossed - adj. placed crosswise;  (of a check) marked for deposit only as indicated by having two lines drawn across it;  produced by crossbreeding.
  • crossing - noun traveling across;  a voyage across a body of water (usually across the Atlantic Ocean);  a path (often marked) where something (as a street or railroad) can be crossed to get from one side to the other;  a point where two lines (paths or arcs etc.) intersect;  (genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybrids;  a junction where one street or road crosses another;  a shallow area in a stream that can be forded.
  • crosstalk - noun the presence of an unwanted signal via an accidental coupling.
  • crow - noun black birds having a raucous call;  a Siouan language spoken by the Crow;  the cry of a cock (or an imitation of it);  a member of the Siouan people formerly living in eastern Montana;  an instance of boastful talk;  a small quadrilateral constellation in the southern hemisphere near Virgo;  verb express pleasure verbally; utter shrill sounds;  dwell on with satisfaction.
  • crowded - adj. overfilled or compacted or concentrated.
  • crowding - noun a situation in which people or things are crowded together.
  • crown - noun the part of a hat (the vertex) that covers the crown of the head;  an ornamental jewelled headdress signifying sovereignty; a wreath or garland worn on the head to signify victory;  the center of a cambered road;  the part of a tooth above the gum that is covered with enamel;  the Crown (or the reigning monarch) as the symbol of the power and authority of a monarchy;  the upper branches and leaves of a tree;  an English coin worth 5 shillings;  the top of the head;  the award given to the champion;  the top point of a mountain or hill;  verb be the culminating event;  put an enamel cover on;  invest with regal power; enthrone;  form the topmost part of.
  • crucial - adj. of extreme importance; vital to the resolution of a crisis;  having the power or quality of deciding;  having crucial relevance;  of the greatest importance.
  • cruciate - adj. shaped like a cross.
  • crude - adj. not processed or subjected to analysis;  belonging to an early stage of technical development; characterized by simplicity and (often) crudeness;  not carefully or expertly made;  devoid of any qualifications or disguise or adornment;  conspicuously and tastelessly indecent;  not refined or processed;  noun a dark oil consisting mainly of hydrocarbons.
  • cruise - noun an ocean trip taken for pleasure;  verb sail or travel about for pleasure, relaxation, or sightseeing;  travel at a moderate speed;  drive around aimlessly but ostentatiously and at leisure;  look for a sexual partner in a public place.
  • crural - adj. of or relating the leg from the knee to the foot.
  • crus - noun the leg from the knee to foot.
  • crush - noun the act of crushing;  a dense crowd of people; temporary love of an adolescent;  leather that has had its grain pattern accentuated;  verb break into small pieces;  become injured, broken, or distorted by pressure;  humiliate or depress completely; come out better in a competition, race, or conflict;  make ineffective; crush or bruise;  to compress with violence, out of natural shape or condition;  come down on or keep down by unjust use of one's authority.
  • crushing - adj. physically or spiritually devastating; often used in combination;  noun forceful prevention; putting down by power or authority.
  • cry - noun a fit of weeping;  a loud utterance; often in protest or opposition;  a loud utterance of emotion (especially when inarticulate);  the characteristic utterance of an animal;  a slogan used to rally support for a cause;  verb shed tears because of sadness, rage, or pain;  bring into a particular state by crying;  proclaim or announce in public;  utter a characteristic sound;  demand immediate action;  utter aloud; often with surprise, horror, or joy;  utter a sudden loud cry.
  • crying - adj. conspicuously and outrageously bad or reprehensible; noisy with or as if with loud cries and shouts;  demanding attention; noun the process of shedding tears (usually accompanied by sobs or other inarticulate sounds).
  • cryosurgery - noun the use of extreme cold (usually liquid nitrogen) to destroy unwanted tissue (warts or cataracts or skin cancers).
  • crypt - noun a cellar or vault or underground burial chamber (especially beneath a church).
  • cryptorchidism - noun failure of one or both testes to move into the scrotum as the male fetus develops.
  • crystal - noun a protective cover that protects the face of a watch; glassware made of quartz;  a crystalline element used as a component in various electronic devices;  a rock formed by the solidification of a substance; has regularly repeating internal structure; external plane faces;  a solid formed by the solidification of a chemical and having a highly regular atomic structure;  colorless glass made of almost pure silica.
  • csis - noun Canada's main foreign intelligence agency that gathers and analyzes information to provide security intelligence for the Canadian government.
  • ct - noun a method of examining body organs by scanning them with X rays and using a computer to construct a series of cross-sectional scans along a single axis;  a New England state; one of the original 13 colonies.
  • cube - noun a block in the (approximate) shape of a cube;  any of several tropical American woody plants of the genus Lonchocarpus whose roots are used locally as a fish poison and commercially as a source of rotenone;  the product of three equal terms;  a hexahedron with six equal squares as faces;  a three-dimensional shape with six square or rectangular sides;  verb raise to the third power;  cut into cubes.
  • cube-shaped - adj. shaped like a cube.
  • cubital - adj. of or relating to the elbow.
  • cuboid - adj. shaped like a cube;  noun a rectangular parallelepiped.
  • cuboidal - adj. shaped like a cube.
  • cue - noun sports implement consisting of a tapering rod used to strike a cue ball in pool or billiards;  an actor's line that immediately precedes and serves as a reminder for some action or speech;  a stimulus that provides information about what to do;  evidence that helps to solve a problem;  verb assist (somebody acting or reciting) by suggesting the next words of something forgotten or imperfectly learned.
  • cuff - noun the lap consisting of a turned-back hem encircling the end of the sleeve or leg;  shackle that consists of a metal loop that can be locked around the wrist; usually used in pairs;  verb hit with the hand;  confine or restrain with or as if with manacles or handcuffs.
  • cul de sac - noun a street with only one way in or out;  a passage with access only at one end.
  • culminate - verb rise to, or form, a summit;  bring to a head or to the highest point;  end, especially to reach a final or climactic stage; reach the highest altitude or the meridian, of a celestial body;  reach the highest or most decisive point.
  • culprit - noun someone who perpetrates wrongdoing.
  • culture - noun the raising of plants or animals;  (biology) the growing of microorganisms in a nutrient medium (such as gelatin or agar); the tastes in art and manners that are favored by a social group;  the attitudes and behavior that are characteristic of a particular social group or organization;  a particular society at a particular time and place;  all the knowledge and values shared by a society;  a highly developed state of perfection; having a flawless or impeccable quality.
  • cultured - adj. marked by refinement in taste and manners.
  • cumbersome - adj. difficult to handle or use especially because of size or weight;  not elegant or graceful in expression.
  • cumulative - adj. increasing by successive addition.
  • cuneiform - adj. of or relating to the tarsal bones (or other wedge-shaped bones);  shaped like a wedge;  noun an ancient wedge-shaped script used in Mesopotamia and Persia.
  • cup - noun a small open container usually used for drinking; usually has a handle;  a large metal vessel with two handles that is awarded as a trophy to the winner of a competition;  the hole (or metal container in the hole) on a golf green;  a punch served in a pitcher instead of a punch bowl;  cup-shaped plant organ;  a United States liquid unit equal to 8 fluid ounces;  the quantity a cup will hold;  any cup-shaped concavity;  verb treat by applying evacuated cups to the patient's skin;  put into a cup;  form into the shape of a cup.
  • cup-shaped - adj. shaped like (or supporting) a cupule.
  • curable - adj. curing or healing is possible;  capable of being hardened by some additive or other agent.
  • curative - adj. tending to cure or restore to health;  noun a medicine or therapy that cures disease or relieve pain.
  • curb - noun an edge between a sidewalk and a roadway consisting of a line of curbstones (usually forming part of a gutter);  a horse's bit with an attached chain or strap to check the horse;  the act of restraining power or action or limiting excess;  a stock exchange in New York;  verb keep to the curb;  place restrictions on;  to put down by force or authority;  lessen the intensity of; temper; hold in restraint; hold or keep within limits.
  • curdling - adj. turning into a solid mass;  noun the process of forming semisolid lumps in a liquid.
  • cure - noun a medicine or therapy that cures disease or relieve pain; verb prepare by drying, salting, or chemical processing in order to preserve;  be or become preserved;  make (substances) hard and improve their usability;  provide a cure for, make healthy again.
  • cured - adj. (used of hay e.g.) allowed to dry;  (used of concrete or mortar) kept moist to assist the hardening;  (used of rubber) treated by a chemical or physical process to improve its properties (hardness and strength and odor and elasticity);  freed from illness or injury;  (used of tobacco) aging as a preservative process (`aged' is pronounced as one syllable);  (used especially of meat) cured in brine.
  • curious - adj. eager to investigate and learn or learn more (sometimes about others' concerns);  beyond or deviating from the usual or expected;  having curiosity aroused; eagerly interested in learning more.
  • curling - adj. of hair having curls;  noun a game played on ice in which heavy stones with handles are slid toward a target.
  • curly - adj. (of hair) having curls or waves.
  • currency - noun general acceptance or use;  the metal or paper medium of exchange that is presently used;  a current state of general acceptance and use;  the property of belonging to the present time.
  • current - adj. occurring in or belonging to the present time;  noun a steady flow (usually from natural causes);  a flow of electricity through a conductor;  dominant course (suggestive of running water) of successive events or ideas.
  • currently - adv. at this time or period; now.
  • curvature - noun the property possessed by the curving of a line or surface;  the rate of change (at a point) of the angle between a curve and a tangent to the curve;  (medicine) a curving or bending; often abnormal.
  • curve - noun a pitch of a baseball that is thrown with spin so that its path curves as it approach the batter;  a line on a graph representing data;  the trace of a point whose direction of motion changes;  curved segment (of a road or river or railroad track etc.);  the property possessed by the curving of a line or surface;  verb form a curl, curve, or kink;  turn sharply; change direction abruptly;  bend or cause to bend;  form an arch or curve;  extend in curves and turns.
  • curved - adj. having or marked by a curve or smoothly rounded bend.
  • cushing - noun United States neurologist noted for his study of the brain and pituitary gland and who identified Cushing's syndrome (1869-1939).
  • cushion - noun a soft bag filled with air or a mass of padding such as feathers or foam rubber etc.;  a mechanical damper; absorbs energy of sudden impulses;  verb protect from impact.
  • cushioning - noun artifact consisting of soft or resilient material used to fill or give shape or protect or add comfort.
  • cusp - noun point formed by two intersecting arcs (as from the intrados of a Gothic arch);  small elevation on the grinding surface of a tooth;  a thin triangular flap of a heart valve.
  • cuspid - noun one of the four pointed conical teeth (two in each jaw) located between the incisors and the premolars.
  • custom - adj. made according to the specifications of an individual; noun accepted or habitual practice;  habitual patronage;  a specific practice of long standing;  money collected under a tariff.
  • customized - adj. made according to the specifications of an individual.
  • cut - adj. with parts removed;  separated into parts or laid open or penetrated with a sharp edge or instrument;  (of pages of a book) having the folds of the leaves trimmed or slit;  fashioned or shaped by cutting;  mixed with water;  (used of rates or prices) reduced usually sharply;  wounded by cutting deeply;  (of a male animal) having the testicles removed;  (used of grass or vegetation) cut down with a hand implement or machine;  made neat and tidy by trimming; noun an unexcused absence from class;  the act of reducing the amount or number;  the act of shortening something by choping off the ends;  the act of cutting something into parts;  the act of penetrating or opening open with a sharp edge;  the division of a deck of cards before dealing;  (sports) a stroke that puts reverse spin on the ball;  a trench resembling a furrow that was made by erosion or excavation;  a canal made by erosion or excavation;  the style in which a garment is cut;  a distinct selection of music from a recording or a compact disc;  (film) an immediate transition from one shot to the next;  a piece of meat that has been cut from an animal carcass; a share of the profits;  a wound made by cutting;  a step on some scale;  in baseball; a batter's attempt to hit a pitched ball;  a refusal to recognize someone you know;  the omission that is made when an editorial change shortens a written passage;  a remark capable of wounding mentally;  verb grow through the gums;  have grow through the gums;  cease, stop;  have a reducing effect;  dissolve by breaking down the fat of;  weed out unwanted or unnecessary things;  shorten as if by severing the edges or ends of;  penetrate injuriously;  fell by sawing; hew;  reap or harvest;  hit (a ball) with a spin so that it turns in the opposite direction;  separate with or as if with an instrument; divide a deck of cards at random into two parts to make selection difficult;  make an incision or separation;  allow incision or separation; function as a cutting instrument;  style and tailor in a certain fashion; perform or carry out;  form or shape by cutting or incising;  form by probing, penetrating, or digging;  create by duplicating data;  record a performance on (a medium);  make a recording of;  stop filming; make an abrupt change of image or sound;  pass through or across; pass directly and often in haste;  move (one's fist);  give the appearance or impression of;  discharge from a group;  intentionally fail to attend;  cut off the testicles (of male animals such as horses); cut and assemble the components of;  lessen the strength or flavor of a solution or mixture;  reduce in scope while retaining essential elements;  cut down on; make a reduction in;  refuse to acknowledge; make out and issue;  cause to stop operating by disengaging a switch;  turn sharply; change direction abruptly;  be able to manage or manage successfully.
  • cutaneous - adj. relating to or existing on or affecting the skin.
  • cuticle - noun the dead skin at the base of a fingernail or toenail; hard outer covering or case of certain organisms such as arthropods and turtles;  the outer layer of the skin covering the exterior body surface of vertebrates.
  • cutter - noun a cutting implement; a tool for cutting;  a sailing vessel with a single mast set further back than the mast of a sloop; someone whose work is cutting (as e.g. cutting cloth for garments); someone who carves the meat;  a boat for communication between ship and shore;  someone who cuts or carves stone.
  • cutting - adj. suitable for cutting or severing;  as physically painful as if caused by a sharp instrument;  (of speech) harsh or hurtful in tone or character;  unpleasantly cold and damp;  noun the act of diluting something;  a piece cut off from the main part of something;  a part (sometimes a root or leaf or bud) removed from a plant to propagate a new plant through rooting or grafting;  the act of shortening something by choping off the ends;  the act of cutting something into parts;  the act of penetrating or opening open with a sharp edge;  the division of a deck of cards before dealing;  removing parts to create a desired shape;  the activity of selecting the scenes to be shown and putting them together to create a film;  an excerpt cut from a newspaper or magazine.
  • cutting-edge - adj. in accord with the most fashionable ideas or style.
  • cva - noun a sudden loss of consciousness resulting when the rupture or occlusion of a blood vessel leads to oxygen lack in the brain.
  • cyanocobalamin - noun a B vitamin that is used to treat pernicious anemia.
  • cyanosis - noun a bluish discoloration of the skin and mucous membranes; a sign that oxygen in the blood is dangerously diminished (as in carbon monoxide poisoning).
  • cycle - noun a single complete execution of a periodically repeated phenomenon;  a periodically repeated sequence of events;  a series of poems or songs on the same theme;  an interval during which a recurring sequence of events occurs;  a wheeled vehicle that has two wheels and is moved by foot pedals;  the unit of frequency; one hertz has a periodic interval of one second;  verb recur in repeating sequences;  pass through a cycle;  cause to go through a recurring sequence;  ride a bicycle;  ride a motorcycle.
  • cyclic - adj. recurring in cycles;  of a compound having atoms arranged in a ring structure;  botany; forming a whorl or having parts arranged in a whorl;  marked by repeated cycles;  conforming to the Carnot cycle.
  • cyclical - adj. recurring in cycles.
  • cycling - noun the sport of traveling on a bicycle or motorcycle.
  • cyclist - noun a person who rides a bicycle.
  • cylinder - noun a cylindrical container for oxygen or compressed air; a chamber within which piston moves;  a solid bounded by a cylindrical surface and two parallel planes (the bases);  a surface generated by rotating a parallel line around a fixed line.
  • cylindrical - adj. having the form of a cylinder.
  • cynthia - noun (Greek mythology) the virgin goddess of the hunt and the moon; daughter of Leto and twin sister of Apollo; identified with Roman Diana.
  • cyst - noun a closed sac that develops abnormally in some body structure;  a small anatomically normal sac or bladderlike structure (especially one containing fluid).
  • cysteine - noun an amino acid containing sulfur that is found in most proteins; oxidizes on exposure to air to form cystine.
  • cystic - adj. of or relating to or resembling a cyst;  of or relating to a normal cyst (as the gallbladder or urinary bladder).
  • cytoarchitecture - noun the cellular composition of a bodily structure.
  • cytochrome - noun (biochemistry) a class of hemoprotein whose principle biological function is electron transfer (especially in cellular respiration).
  • cytokine - noun any of various proteins secreted by cells of the immune system that serve to regulate the immune system.
  • cytokinesis - noun organic process consisting of the division of the cytoplasm of a cell following karyokinesis bringing about the separation into two daughter cells.
  • cytology - noun the branch of biology that studies the structure and function of cells.
  • cytoplasm - noun the protoplasm of a cell excluding the nucleus; is full of proteins that control cell metabolism.
  • cytoplasmic - adj. of or relating to cytoplasm.
  • cytosine - noun a base found in DNA and RNA and derived from pyrimidine; pairs with guanine.
  • cytoskeleton - noun a microscopic network of actin filaments and microtubules in the cytoplasm of many living cells that gives the cell shape and coherence.
  • cytosol - noun the aqueous part of the cytoplasm within which various particles and organelles are suspended.
  • cytotoxic - adj. of or relating to substances that are toxic to cells.
  • cytotoxicity - noun the degree to which something is toxic to living cells.
  • d - noun the 4th letter of the Roman alphabet;  a fat-soluble vitamin that prevents rickets.
  • da - noun an official prosecutor for a judicial district.
  • dag - noun a flap along the edge of a garment; used in medieval clothing;  10 grams.
  • daily - adj. occurring or done each day;  measured by the day or happening every day;  adv. without missing a day;  gradually and progressively;  noun a newspaper that is published every day.
  • dairy - noun a farm where dairy products are produced.
  • dale - noun an open river valley (in a hilly area).
  • dalton - noun English chemist and physicist who formulated atomic theory and the law of partial pressures; gave the first description of red-green color blindness (1766-1844).
  • damage - noun the act of damaging something or someone;  loss of military equipment;  the occurrence of a change for the worse;  any harm or injury resulting from a violation of a legal right;  the amount of money needed to purchase something;  verb inflict damage upon.
  • damaged - adj. harmed or injured or spoiled;  especially of reputation;  being unjustly brought into disrepute.
  • damages - noun a sum of money paid in compensation for loss or injury.
  • damaging - adj. designed or tending to discredit, especially without positive or helpful suggestions;  (sometimes followed by `to') causing harm or injury.
  • damon - noun the friend of Phintias who pledged his life that Phintias would return (4th century BC).
  • dampening - noun the act of making something slightly wet.
  • dance - noun an artistic form of nonverbal communication;  a party for social dancing;  a party of people assembled for dancing;  taking a series of rhythmical steps (and movements) in time to music;  verbmove in a pattern; usually to musical accompaniment; do or perform a dance;  move in a graceful and rhythmical way;  skip, leap, or move up and down or sideways.
  • dancer - noun a performer who dances;  a person who participates in a social gathering arranged for dancing (as a ball).
  • dancing - noun taking a series of rhythmical steps (and movements) in time to music.
  • dander - noun a feeling of anger and animosity;  small scales from animal skins or hair or bird feathers that can cause allergic reactions in some people.
  • danger - noun a dangerous place;  the condition of being susceptible to harm or injury;  a cause of pain or injury or loss;  a venture undertaken without regard to possible loss or injury.
  • dangerous - adj. causing fear or anxiety by threatening great harm; involving or causing danger or risk; liable to hurt or harm.
  • dangerously - adv. in a dangerous manner.
  • dark - adj. not giving performances; closed;  brunet (used of hair or skin or eyes);  devoid of or deficient in light or brightness; shadowed or black;  (used of color) having a dark hue;  marked by difficulty of style or expression;  showing a brooding ill humor;  secret;  having skin rich in melanin pigments;  causing dejection;  lacking enlightenment or knowledge or culture;  stemming from evil characteristics or forces; wicked or dishonorable;  noun an unenlightened state;  absence of light or illumination;  an unilluminated area;  absence of moral or spiritual values;  the time after sunset and before sunrise while it is dark outside.
  • dark-skinned - adj. naturally having skin of a dark color;  having skin rich in melanin pigments.
  • darken - verb make dark or darker;  become dark or darker;  tarnish or stain;  become or make darker.
  • darkened - adj. become or made dark by lack of light;  (of fabrics and paper) grown dark in color over time.
  • darkening - adj. becoming dark or darker as from waning light or clouding over;  characterized by hopelessness; filled with gloom; noun changing to a darker color.
  • darkly - adv. without light;  in a dark glowering menacing manner.
  • darkness - noun a swarthy complexion;  having a dark or somber color;  an unilluminated area;  an unenlightened state;  absence of light or illumination;  absence of moral or spiritual values.
  • dashboard - noun instrument panel on an automobile or airplane containing dials and controls;  protective covering consisting of a panel to protect people from the splashing water or mud etc..
  • dashed - adj. having gaps or spaces.
  • data - noun a collection of facts from which conclusions may be drawn.
  • database - noun an organized body of related information.
  • date - noun sweet edible fruit of the date palm with a single long woody seed;  a meeting arranged in advance;  a participant in a date; the present;  the specified day of the month;  a particular day specified as the time something happens;  the particular day, month, or year (usually according to the Gregorian calendar) that an event occurred;  a particular but unspecified point in time;  verb assign a date to; determine the (probable) date of;  provide with a dateline; mark with a date;  stamp with a date;  go on a date with;  date regularly; have a steady relationship with.
  • dating - noun use of chemical analysis to estimate the age of geological specimens.
  • daughter - noun a female human offspring.
  • daunting - adj. discouraging through fear.
  • david - noun (Old Testament) the 2nd king of the Israelites; as a young shepherd he fought Goliath (a giant Philistine warrior) and killed him by hitting him in the head with a stone flung from a sling; he united Israel with Jerusalem as its capital; many of the Psalms are attributed to David (circa 1000-962 BC);  French neoclassical painter who actively supported the French Revolution (1748-1825); patron saint of Wales (circa 520-600).
  • davis - noun United States film actress (1908-1989);  United States tennis player who donated the Davis Cup for international team tennis competition (1879-1945);  American statesman; president of the Confederate States of America during the American Civil War (1808-1889);  United States jazz musician; noted for his trumpet style (1926-1991);  United States painter who developed an American version of cubism (1894-1964);  English navigator who explored the Arctic while searching for the Northwest Passage (1550-1605).
  • dawn - noun the earliest period;  the first light of day;  an opening time period;  verb become light;  appear or develop;  become clear or enter one's consciousness or emotions.
  • day - noun United States writer best known for his autobiographical works (1874-1935);  a period of opportunity;  some point or period in time;  the recurring hours when you are not sleeping (especially those when you are working);  time for Earth to make a complete rotation on its axis;  a day assigned to a particular purpose or observance;  the time after sunrise and before sunset while it is light outside;  the period of time taken by a particular planet (e.g. Mars) to make a complete rotation on its axis;  an era of existence or influence;  the time for one complete rotation of the earth relative to a particular star, about 4 minutes shorter than a mean solar day.
  • day-to-day - adj. occurring or done each day.
  • daylight - noun light during the daytime;  the time after sunrise and before sunset while it is light outside.
  • days - noun the time during which someone's life continues.
  • daytime - noun the time after sunrise and before sunset while it is light outside.
  • de - noun a Mid-Atlantic state; one of the original 13 colonies.
  • deactivation - noun the act of deactivating or making ineffective (as a bomb);  breaking up a military unit (by transfers or discharges).
  • dead - adj. total;  devoid of activity;  physically inactive;  no longer having or seeming to have or expecting to have life;  not showing characteristics of life especially the capacity to sustain life; no longer exerting force or having energy or heat;  lacking animation or excitement or activity;  drained of electric charge; discharged; sudden and complete;  no longer having force or relevance;  no longer in force or use; inactive;  lacking resilience or bounce;  not surviving in active use;  out of use or operation because of a fault or breakdown;  not circulating or flowing;  unerringly accurate;  not yielding a return;  lacking acoustic resonance;  devoid of physical sensation; numb;  (followed by `to') not showing human feeling or sensitivity; unresponsive;  not endowed with life;  very tired;  adv.completely and without qualification; used informally as intensifiers; quickly and without warning;  noun people who are no longer living;  a time when coldness (or some other quality associated with death) is intense.
  • deadly - adj. (of a disease) having a rapid course and violent effect; causing or capable of causing death;  of an instrument of certain death;  involving loss of divine grace or spiritual death;  extremely poisonous or injurious; producing venom;  exceedingly harmful;  adv.as if produced by death;  as if dead;  (used as intensives) extremely.
  • deafness - noun partial or complete loss of hearing.
  • deal - noun the act of apportioning or distributing something;  the act of distributing playing cards;  a particular instance of buying or selling;  the type of treatment received (especially as the result of an agreement);  a plank of softwood (fir or pine board);  an agreement between parties (usually arrived at after discussion) fixing obligations of each;  the cards held in a card game by a given player at any given time;  (often followed by `of') a large number or amount or extent;  wood that is easy to saw (from conifers such as pine or fir);  verb do business; offer for sale as for one's livelihood;  sell; distribute to the players in a game;  give (a specific card) to a player; take action with respect to (someone or something);  behave in a certain way towards others;  take into consideration for exemplifying purposes;  deal with verbally or in some form of artistic expression; give out as one's portion or share;  administer or bestow, as in small portions;  be in charge of, act on, or dispose of;  direct the course of; manage or control;  come to terms or deal successfully with.
  • dealing - noun method or manner of conduct in relation to others; the act of transacting within or between groups (as carrying on commercial activities).
  • deamination - noun removal of the amino radical from an amino acid or other amino compound.
  • dean - noun an administrator in charge of a division of a university or college;  (Roman Catholic Church) the head of the College of Cardinals;  a man who is the senior member of a group;  United States film actor whose moody rebellious roles made him a cult figure (1931-1955).
  • death - noun the act of killing;  the event of dying or departure from life;  the personification of death;  the permanent end of all life functions in an organism or part of an organism;  the absence of life or state of being dead;  the time at which life ends; continuing until dead;  the time when something ends;  a final state.
  • debate - noun the formal presentation of and opposition to a stated proposition (usually followed by a vote);  a discussion in which reasons are advanced for and against some proposition or proposal; verb argue with one another;  discuss the pros and cons of an issue; have an argument about something;  think about carefully; weigh.
  • debilitating - adj. impairing the strength and vitality.
  • debridement - noun surgical removal of foreign material and dead tissue from a wound in order to prevent infection and promote healing.
  • debris - noun the remains of something that has been destroyed or broken up.
  • debt - noun an obligation to pay or do something;  money or goods or services owed by one person to another;  the state of owing something (especially money).
  • dec - noun (astronomy) the angular distance of a celestial body north or south of the celestial equator; expressed in degrees; used with right ascension to specify positions on the celestial sphere;  the last (12th) month of the year.
  • decade - noun a period of 10 years.
  • decarboxylation - noun the process of removing a carboxyl group from a chemical compound (usually replacing it with hydrogen).
  • decay - noun the organic phenomenon of rotting;  a gradual decrease; as of stored charge or current;  the process of gradually becoming inferior;  the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation;  an inferior state resulting from the process of decaying;  verb fall into decay or ruin;  undergo decay or decomposition;  lose a stored charge, magnetic flux, or current.
  • deceased - adj. dead;  noun someone who is no longer alive.
  • decedent - noun someone who is no longer alive.
  • decide - verb reach, make, or come to a decision about something; bring to an end; settle conclusively;  cause to decide;  influence or determine.
  • deciding - adj. having the power or quality of deciding;  noun the cognitive process of reaching a decision.
  • decidua - noun the epithelial tissue of the endometrium.
  • deciduous - adj. (of plants and shrubs) shedding foliage at the end of the growing season;  (of teeth, antlers, etc.) being shed at the end of a period of growth.
  • deciliter - noun a metric unit of volume equal to one tenth of a liter.
  • decipher - verb read with difficulty;  convert code into ordinary language.
  • decision - noun the act of making up your mind about something;  a position or opinion or judgment reached after consideration;  the outcome of a game or contest;  (boxing) a victory won on points when no knockout has occurred;  the trait of resoluteness as evidenced by firmness of character or purpose.
  • decision making - noun the cognitive process of reaching a decision.
  • deck - noun any of various platforms built into a vessel;  street name for a packet of illegal drugs;  a porch that resembles the deck on a ship;  a pack of 52 playing cards;  verb knock down with force; decorate;  be beautiful to look at.
  • declared - adj. made known or openly avowed;  declared as fact; explicitly stated.
  • decline - noun change toward something smaller or lower;  a condition inferior to an earlier condition; a gradual falling off from a better state;  a downward slope or bend;  a gradual decrease; as of stored charge or current;  verb grow smaller;  inflect for number, gender, case, etc., "in many languages, speakers decline nouns, pronouns, and adjectives";  go down in value;  go down;  grow worse; show unwillingness towards;  refuse to accept.
  • decomposition - noun the analysis of a vector field;  (biology) the process of decay caused by bacterial or fungal action;  (chemistry) separation of a substance into two or more substances that may differ from each other and from the original substance;  in a decomposed state;  the organic phenomenon of rotting.
  • decompression - noun relieving pressure;  restoring compressed information to its normal form for use or display.
  • decorative - adj. serving an esthetic rather than a useful purpose.
  • decrease - noun the act of decreasing or reducing something;  the amount by which something decreases;  a change downward;  a process of becoming smaller or shorter;  verb decrease in size, extent, or range;  make smaller.
  • decreased - adj. made less in size or amount or degree.
  • decreasing - adj. becoming less or smaller;  music.
  • decussate - adj. crossed or intersected in the form of an X;  verbcross or intersect so as to form a cross.
  • decussation - noun an intersection or crossing of two tracts in the form of the letter X.
  • dedicated - adj. devoted to a cause or ideal or purpose;  solemnly dedicated to or set apart for a high purpose.
  • deep - adj. exhibiting great cunning usually with secrecy;  strong; intense;  very distant in time or space;  having great spatial extension or penetration downward or inward from an outer surface or backward or laterally or outward from a center; sometimes used in combination;  relatively deep or strong; affecting one deeply;  with head or back bent low;  large in quantity or size;  extreme;  marked by depth of thinking;  relatively thick from top to bottom;  extending relatively far inward;  difficult to penetrate; incomprehensible to one of ordinary understanding or knowledge;  of an obscure nature; having or denoting a low vocal or instrumental range;  (of darkness) very intense;  adv. to far into space;  to an advanced time;  to a great depth;  noun literary term for an ocean;  the central and most intense or profound part;  a long steep-sided depression in the ocean floor.
  • deepen - verb become deeper in tone;  make deeper;  become more intense;  make more intense, stronger, or more marked.
  • deepened - adj. having accumulated or become more intense.
  • deepening - adj. accumulating and becoming more intense;  noun a process of becoming deeper and more profound.
  • deeply - adv. to a great depth;  to a great depth psychologically.
  • defecate - verb have a bowel movement.
  • defecation - noun the elimination of fecal waste through the anus.
  • defect - noun a failing or deficiency;  an imperfection in a bodily system;  an imperfection in a device or machine;  a mark or flaw that spoils the appearance of something (especially on a person's body); verb desert (a cause, a country or an army), often in order to join the opposing cause, country, or army.
  • defective - adj. markedly subnormal in structure or function or intelligence or behavior;  having a defect;  not working properly.
  • defend - verb argue or speak in defense of;  be on the defensive; act against an attack;  protect against a challenge or attack;  be the defense counsel for someone in a trial;  state or assert;  fight against or resist strongly;  protect or fight for as a champion.
  • defending - adj. attempting to or designed to prevent an opponent from winning or scoring.
  • defense - noun protection from harm;  military action or resources protecting a country against potential enemies;  a defendant's answer or plea denying the truth of the charges against him;  the justification for some act or belief;  an organization of defenders that provides resistance against attack;  the defendant and his legal advisors collectively;  (sports) the team that is trying to prevent the other team from scoring;  a structure used to defend against attack; the speech act of answering an attack on your assertions;  the federal department responsible for safeguarding national security of the United States; created in 1947;  (psychiatry) an unconscious process that tries to reduce the anxiety associated with instinctive desires.
  • defensive - adj. intended or appropriate for defending against or deterring aggression or attack;  attempting to justify or defend in speech or writing;  serving as or appropriate for defending or protecting;  noun an attitude of defensiveness (especially in the phrase `on the defensive').
  • defibrillation - noun treatment by stopping fibrillation of heart muscles (usually by electric shock delivered by a defibrillator).
  • defibrillator - noun an electronic device that administers an electric shock of preset voltage to the heart through the chest wall in an attempt to restore the normal rhythm of the heart during ventricular fibrillation.
  • deficiency - noun lack of an adequate quantity or number;  the state of needing something that is absent or unavailable.
  • deficient - adj. inadequate in amount or degree;  falling short of some prescribed norm;  of a quantity not able to fulfill a need or requirement.
  • deficit - noun the property of being an amount by which something is less than expected or required;  an excess of liabilities over assets (usually over a certain period);  (sports) the score by which a team or individual is losing;  a deficiency or failure in neurological or mental functioning.
  • define - verb give a definition for the meaning of a word;  determine the nature of;  show the form or outline of;  determine the essential quality of.
  • defined - adj. clearly characterized or delimited;  clearly defined; showing clearly the outline or profile or boundary.
  • defining - noun any process serving to define the shape of something.
  • definite - adj. known for certain;  precise; explicit and clearly defined.
  • definition - noun clarity of outline;  a concise explanation of the meaning of a word or phrase or symbol.
  • definitive - adj. supplying or being a final or conclusive settlement; clearly defined or formulated;  of recognized authority or excellence.
  • deflated - adj. collapsed through the release of gas or air;  brought low in spirit.
  • deform - verb alter the shape of (something) by stress;  become misshapen;  make formless;  assume a different shape or form; cause (a plastic object) to assume a crooked or angular form;  twist and press out of shape.
  • deformation - noun alteration in the shape or dimensions of an object as a result of the application of stress to it;  the act of twisting or deforming the shape of something (e.g., yourself);  a change for the worse.
  • deformed - adj. so badly formed or out of shape as to be ugly.
  • deformity - noun an affliction in which some part of the body is misshapen or malformed;  an appearance that has been spoiled or is misshapen.
  • degenerate - adj. unrestrained by convention or morality;  noun a person whose behavior deviates from what is acceptable especially in sexual behavior;  verb grow worse.
  • degeneration - noun passing from a more complex to a simpler biological form;  the process of declining from a higher to a lower level of effective power or vitality or essential quality;  the state of being degenerate in mental or moral qualities.
  • degenerative - adj. (of illness) marked by gradual deterioration of organs and cells along with loss of function.
  • deglutition - noun the act of swallowing.
  • degradation - noun changing to a lower state (a less respected state);  a low or downcast state.
  • degrade - verb lower the grade of something; reduce its worth; reduce the level of land, as by erosion;  reduce in worth or character, usually verbally.
  • degraded - adj. lowered in value;  unrestrained by convention or morality.
  • degrading - adj. used of conduct; characterized by dishonor; harmful to the mind or morals.
  • degree - noun a position on a scale of intensity or amount or quality; the seriousness of something (e.g., a burn or crime);  the highest power of a term or variable;  a measure for arcs and angles;  a unit of temperature on a specified scale;  a specific identifiable position in a continuum or series or especially in a process;  an award conferred by a college or university signifying that the recipient has satisfactorily completed a course of study.
  • dehydrated - adj. suffering from excessive loss of water from the body;  preserved by removing natural moisture.
  • dehydration - noun the process of extracting moisture;  depletion of bodily fluids;  dryness resulting from the removal of water.
  • delay - noun the act of delaying; inactivity resulting in something being put off until a later time;  time during which some action is awaited;  verb cause to be slowed down or delayed;  act later than planned, scheduled, or required;  slow the growth or development of; stop or halt.
  • delayed - adj. caused to be slower or later;  not as far along as normal in development.
  • deleterious - adj. harmful to living things.
  • deletion - noun the act of deleting something written or printed;  the omission that is made when an editorial change shortens a written passage;  (genetics) the loss or absence of one or more nucleotides from a chromosome;  any process whereby sounds are left out of spoken words or phrases.
  • deliberate - adj. by conscious design or purpose;  marked by careful consideration or reflection;  with care and dignity;  produced or marked by conscious design or premeditation;  carefully thought out in advance;  verb discuss the pros and cons of an issue;  think about carefully; weigh.
  • delicate - adj. exquisitely fine and subtle and pleasing; susceptible to injury;  easily broken or damaged or destroyed;  difficult to handle; requiring great tact;  of an instrument or device; capable of registering minute differences or changes precisely;  marked by great skill especially in meticulous technique;  easily hurt;  developed with extreme delicacy and subtlety.
  • delicately - adv. in a delicate manner.
  • delicious - adj. greatly pleasing or entertaining;  extremely pleasing to the sense of taste;  noun variety of sweet eating apples.
  • deliver - verb deliver (a speech, oration, or idea);  utter (an exclamation, noise, etc.);  bring to a destination, make a delivery; throw or hurl from the mound to the batter, as in baseball;  carry out or perform;  save from sins;  cause_to_be_born;  pass down; relinquish possession or control over;  to surrender someone or something to another;  hand over to the authorities of another country;  free from harm or evil.
  • delivery - noun the act of delivering a child;  the act of delivering or distributing something (as goods or mail);  the voluntary transfer of something (title or possession) from one party to another;  the event of giving birth;  recovery or preservation from loss or danger; (baseball) the act of throwing a baseball by a pitcher to a batter; your characteristic style or manner of expressing yourself orally.
  • delta - noun the 4th letter of the Greek alphabet;  a low triangular area where a river divides before entering a larger body of water.
  • deltoid - adj. of a leaf shape; suggesting a capital delta, with a point at the apex;  noun a large triangular muscle covering the shoulder joint and serving to abduct and flex and extend and rotate the arm.
  • delve - verb turn up, loosen, or remove earth.
  • demand - noun the act of demanding;  an urgent or peremptory request;  the ability and desire to purchase goods and services; required activity;  a condition requiring relief;  verb request urgently and forcefully;  claim as due or just;  ask to be informed of;  summon to court;  lay legal claim to;  require as useful, just, or proper.
  • demanding - adj. requiring more than usually expected or thought due; especially great patience and effort and skill.
  • demarcation - noun a conceptual separation or distinction;  the boundary of a specific area.
  • dementia - noun mental deterioration of organic or functional origin.
  • demineralization - noun the removal of minerals and mineral salts from a liquid (especially from water);  abnormal loss of mineral salts (especially from bone).
  • demonstrate - verb march in protest; take part in a demonstration; establish the validity of something, as by an example, explanation or experiment;  provide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes;  show or demonstrate something to an interested audience.
  • demonstrated - adj. having been demonstrated or verified beyond doubt.
  • demonstration - noun a show of military force or preparedness;  a public display of group feelings (usually of a political nature);  proof by a process of argument or a series of proposition proving an asserted conclusion;  a visual presentation showing how something works;  a show or display; the act of presenting something to sight or view.
  • demyelination - noun loss of the myelin covering of some nerve fibers resulting in their impaired function.
  • denali - noun a mountain in south central Alaska; the highest peak in North America (20,300 feet high).
  • denature - verb make (alcohol) unfit for drinking without impairing usefulness for other purposes;  modify (as a native protein) especially by heat, acid, alkali, or ultraviolet radiation so that all of the original properties are removed or diminished;  add nonfissionable material to (fissionable material) so as to make unsuitable for use in an atomic bomb.
  • denatured - adj. changed in nature or natural quality.
  • dendrite - noun short fiber that conducts toward the cell body of the neuron.
  • dendritic - adj. (neuroscience) of or relating to or resembling a dendrite.
  • denomination - noun a class of one kind of unit in a system of numbers or measures or weights or money;  a group of religious congregations having its own organization and a distinctive faith; identifying word or words by which someone or something is called and classified or distinguished from others.
  • denote - verb have as a meaning;  be a sign or indication of;  make known; make an announcement.
  • dense - adj. slow to learn or understand; lacking intellectual acuity; having high relative density or specific gravity;  hard to pass through because of dense growth;  permitting little if any light to pass through because of denseness of matter;  having component parts closely crowded together.
  • densely - adv. in a concentrated manner;  in a stupid manner.
  • density - noun the amount per unit size;  the spatial property of being crowded together.
  • dental - adj. of or relating to the teeth;  of or relating to dentistry; noun a consonant articulated with the tip of the tongue near the gum ridge.
  • dentate - adj. having toothlike projections in the margin.
  • dentin - noun bone (calcified tissue) surrounding the pulp cavity of a tooth;  a calcareous material harder and denser than bone that comprises the bulk of a tooth.
  • dentist - noun a person qualified to practice dentistry.
  • dentistry - noun the branch of medicine dealing with the anatomy and development and diseases of the teeth.
  • dentition - noun the kind and number and arrangement of teeth (collectively) in a person or animal;  the eruption through the gums of baby teeth.
  • deoxyribose - noun a sugar that is a constituent of nucleic acids.
  • department - noun a specialized sphere of knowledge;  a specialized division of a large organization;  the territorial and administrative division of some countries (such as France).
  • depend - verb be contingent upon (something that is elided);  have faith or confidence in.
  • dependable - adj. financially sound;  consistent in performance or behavior;  worthy of being depended on;  worthy of reliance or trust.
  • dependent - adj. addicted to a drug;  contingent on something else; not independent;  (of a clause) unable to stand alone syntactically as a complete sentence;  being under the power or sovereignty of another or others;  supported from above;  noun a person who relies on another person for support (especially financial support).
  • depict - verb give a description of;  show in, or as in, a picture;  make a portrait of.
  • depicted - adj. represented graphically by sketch or design or lines.
  • depigmentation - noun absence or loss of pigmentation (or less than normal pigmentation) in the skin or hair.
  • deplete - verb use up (resources or materials).
  • depleted - adj. having resources completely depleted;  no longer sufficient.
  • depletion - noun the act of decreasing something markedly;  the state of being depleted.
  • depolarization - noun a loss of polarity or polarization.
  • depolarize - verb eliminate the polarization of.
  • deposit - noun the act of putting something somewhere;  a payment given as a guarantee that an obligation will be met;  the phenomenon of sediment or gravel accumulating;  money given as security for an article acquired for temporary use;  money deposited in a bank;  a facility where things can be deposited for storage or safekeeping; matter that has been deposited by some natural process;  a partial payment made at the time of purchase; the balance to be paid later; the natural process of laying down a deposit of something;  verb put into a bank account;  fix, force, or implant;  put (something somewhere) firmly.
  • deposition - noun the act of deposing someone; removing a powerful person from a position or office;  (law) a pretrial interrogation of a witness; usually conducted in a lawyer's office;  the natural process of laying down a deposit of something;  the act of putting something somewhere.
  • depress - verb lessen the activity or force of;  lower someone's spirits; make downhearted;  lower (prices or markets);  press down; cause to drop or sink.
  • depressed - adj. having the central portion lower than the margin; lower than previously;  flattened downward as if pressed from above or flattened along the dorsal and ventral surfaces;  low in spirits.
  • depressing - adj. causing or suggestive of sorrow or gloom;  causing dejection.
  • depression - noun pushing down;  sad feelings of gloom and inadequacy;  angular distance below the horizon (especially of a celestial object);  a concavity in a surface produced by pressing;  a mental state characterized by a pessimistic sense of inadequacy and a despondent lack of activity;  a long-term economic state characterized by unemployment and low prices and low levels of trade and investment;  a period during the 1930s when there was a worldwide economic depression and mass unemployment;  a sunken or depressed geological formation;  a state of depression and anhedonia so severe as to require clinical intervention;  an air mass of lower pressure; often brings precipitation.
  • depressor - noun a device used by physician to press a part down or aside;  any nerve whose activity tends to reduce the activity or tone of the body part it serves;  any skeletal muscle that draws a body part down.
  • deprivation - noun act of depriving someone of food or money or rights;  the disadvantage that results from losing something;  a state of extreme poverty.
  • deprived - adj. marked by deprivation especially of the necessities of life or healthful environmental influences.
  • depth - noun degree of psychological or intellectual profundity; extent downward or backward or inward;  (usually plural) the deepest and most remote part;  (usually plural) a low moral state;  the intellectual ability to penetrate deeply into ideas.
  • derivative - adj. resulting from or employing derivation;  noun(linguistics) a word that is derived from another word;  the result of mathematical differentiation; the instantaneous change of one quantity relative to another; df(x)/dx;  a financial instrument whose value is based on another security.
  • derive - verb develop or evolve from a latent or potential state; come from;  obtain;  come from; be connected by a relationship of blood, for example;  reason by deduction; establish by deduction.
  • derived - adj. formed or developed from something else; not original.
  • deriving - noun (historical linguistics) an explanation of the historical origins of a word or phrase.
  • derma - noun the deep vascular inner layer of the skin.
  • dermabrasion - noun removal of scars or tattoos by anesthetizing the skin surface and then sanding or scraping off some of the outer skin layer.
  • dermal - adj. of or relating to or located in the dermis;  relating to or existing on or affecting the skin;  of or relating to a cuticle or cuticula.
  • dermatitis - noun inflammation of the skin; skin becomes itchy and may develop blisters.
  • dermatologist - noun a doctor who specializes in the physiology and pathology of the skin.
  • dermatology - noun the branch of medicine dealing with the skin and its diseases.
  • dermatome - noun a surgical instrument used to cut very thin slices of skin.
  • dermis - noun the deep vascular inner layer of the skin.
  • descartes - noun French philosopher and mathematician; developed dualistic theory of mind and matter; introduced the use of coordinates to locate a point in two or three dimensions (1596-1650).
  • descend - verb move downward and lower, but not necessarily all the way;  come as if by falling;  do something that one considers to be below one's dignity;  come from; be connected by a relationship of blood, for example.
  • descendants - noun all of the offspring of a given progenitor.
  • descending - adj. coming down or downward.
  • descent - noun the act of changing your location in a downward direction;  a movement downward;  a downward slope or bend;  the kinship relation between an individual and the individual's progenitors;  properties attributable to your ancestry;  the descendants of one individual.
  • describe - verb give a description of;  identify as in botany or biology, for example;  to give an account or representation of in words;  make a mark or lines on a surface.
  • described - adj. represented in words especially with sharpness and detail.
  • description - noun sort or variety;  a statement that represents something in words;  the act of describing something.
  • desert - adj. located in a dismal or remote area; desolate;  noun arid land with little or no vegetation;  verb leave someone who needs or counts on you; leave in the lurch;  desert (a cause, a country or an army), often in order to join the opposing cause, country, or army.
  • desiccation - noun the process of extracting moisture;  dryness resulting from the removal of water.
  • design - noun the act of working out the form of something (as by making a sketch or outline or plan);  a decorative or artistic work;  a preliminary sketch indicating the plan for something;  an arrangement scheme;  the creation of something in the mind;  something intended as a guide for making something else;  an anticipated outcome that is intended or that guides your planned actions;  verb intend or have as a purpose;  design something for a specific role or purpose or effect;  conceive or fashion in the mind; invent;  make a design of; plan out in systematic, often graphic form;  create the design for; create or execute in an artistic or highly skilled manner;  create designs;  make or work out a plan for; devise.
  • designated - adj. selected or named for a duty.
  • designation - noun the act of designating or identifying something; the act of putting a person into a non-elective position;  identifying word or words by which someone or something is called and classified or distinguished from others.
  • designed - adj. done or made or performed with purpose and intent; planned or created in an artistic or skilled manner;  carefully practiced or designed or premeditated;  organized so as to give configuration to.
  • desirable - adj. worth having or seeking or achieving;  worthy of being chosen especially as a spouse.
  • desire - noun an inclination to want things;  the feeling that accompanies an unsatisfied state;  something that is desired;  verbfeel or have a desire for; want strongly;  express a desire for;  expect and wish.
  • desired - adj. greatly desired;  wanted intensely.
  • desk - noun a piece of furniture with a writing surface and usually drawers or other compartments.
  • despair - noun the feeling that everything is wrong and nothing will turn out well;  a state in which everything seems wrong and will turn out badly;  verb abandon hope; give up hope; lose heart.
  • despite - noun contemptuous disregard;  lack of respect accompanied by a feeling of intense dislike.
  • destination - noun the ultimate goal for which something is done; written directions for finding some location; written on letters or packages that are to be delivered to that location;  the place designated as the end (as of a race or journey).
  • destined - adj. (usually followed by `to') governed by fate;  headed or intending to head in a certain direction; often used as a combining form as in `college-bound students'.
  • destroy - verb put to death;  destroy completely; damage irreparably;  do away with, cause the destruction or undoing of; defeat soundly.
  • destroyed - adj. spoiled or ruined or demolished;  destroyed physically or morally.
  • destruction - noun the termination of something by causing so much damage to it that it cannot be repaired or no longer exists;  an event (or the result of an event) that completely destroys something; a final state.
  • destructive - adj. causing destruction or much damage.
  • detach - verb cause to become detached or separated; take off; come to be detached;  separate (a small unit) from a larger, especially for a special assignment.
  • detachment - noun the act of releasing from an attachment or connection;  a small unit of troops of special composition;  coming apart;  avoiding emotional involvement;  the state of being isolated or detached.
  • detail - noun an isolated fact that is considered separately from the whole;  extended treatment of particulars;  a crew of workers selected for a particular task;  a small part that can be considered separately from the whole;  a temporary military unit;  verb assign to a specific task;  provide details for.
  • detailed - adj. developed or executed with care and in minute detail.
  • details - noun true confidential information.
  • detect - verb discover or determine the existence, presence, or fact of.
  • detectable - adj. easily seen or detected;  capable of being detected.
  • detected - adj. perceived with the mind;  perceived or discerned.
  • detecting - noun a police investigation to determine the perpetrator.
  • detection - noun the act of detecting something; catching sight of something;  a police investigation to determine the perpetrator;  the perception that something has occurred or some state exists;  the detection that a signal is being received.
  • detergent - adj. having cleansing power;  noun a cleansing agent that differs from soap but can also emulsify oils and hold dirt in suspension;  a surface-active chemical widely used in industry and laundering.
  • deteriorate - verb become worse or disintegrate;  grow worse.
  • deterioration - noun process of changing to an inferior state;  a symptom of reduced quality or strength.
  • determinant - adj. having the power or quality of deciding;  noun a determining or causal element or factor;  a square matrix used to solve simultaneous equations;  the site on the surface of an antigen molecule to which an antibody attaches itself.
  • determination - noun the act of determining the properties of something;  the quality of being determined to do or achieve something;  the act of making up your mind about something;  a position or opinion or judgment reached after consideration.
  • determine - verb fix conclusively or authoritatively;  fix in scope; fix the boundaries of; the tree determines the border of the property; shape or influence; give direction to;  establish after a calculation, investigation, experiment, survey, or study;  find out, learn, or determine with certainty, usually by making an inquiry or other effort; reach, make, or come to a decision about something;  settle conclusively; come to terms;  decide upon or fix definitely.
  • determined - adj. having been learned or found or determined especially by investigation;  characterized by great determination; determined or decided upon as by an authority;  devoting full strength and concentrated attention to;  strongly motivated to succeed.
  • determining - adj. having the power or quality of deciding.
  • detoxification - noun treatment for poisoning by neutralizing the toxic properties (normally a function of the liver);  a treatment for addiction to drugs or alcohol intended to remove the physiological effects of the addictive substances.
  • detoxify - verb remove poison from;  treat for alcohol or drug dependence.
  • detrimental - adj. (sometimes followed by `to') causing harm or injury.
  • deuterium - noun an isotope of hydrogen which has one neutron (as opposed to zero neutrons in hydrogen).
  • devastating - adj. wreaking or capable of wreaking complete destruction;  physically or spiritually devastating; often used in combination;  making light of.
  • develop - verb expand in the form of a series;  grow, progress, unfold, or evolve through a process of evolution, natural growth, differentiation, or a conducive environment;  cause to grow and differentiate in ways conforming to its natural development;  be gradually disclosed or unfolded; become manifest;  elaborate by the unfolding of a musical idea and by the working out of the rhythmic and harmonic changes in the theme;  grow emotionally or mature; gain through experience;  move into a strategically more advantageous position;  move one's pieces into strategically more advantageous positions;  superimpose a three-dimensional surface on a plane without stretching, in geometry;  generate gradually; make something new, such as a product or a mental or artistic creation;  make visible by means of chemical solutions;  come to have or undergo a change of (physical features and attributes); change the use of and make available or usable;  happen;  become technologically advanced;  create by training and teaching; elaborate, as of theories and hypotheses;  work out;  come into existence; take on form or shape.
  • developed - adj. being changed over time so as to be e.g. stronger or more complete or more useful;  (of real estate) made more useful and profitable as by building or laying out roads;  (used of societies) having high industrial development.
  • developing - adj. relating to societies in which capital needed to industrialize is in short supply;  gradually unfolding or growing (especially as of something latent);  making or becoming visible through or as if through the action of a chemical agent;  nounprocessing a photosensitive material in order to make an image visible.
  • development - noun act of improving by expanding or enlarging or refining;  (music) the section of a composition or movement (especially in sonata form) where the major musical themes are developed and elaborated;  a recent event that has some relevance for the present situation;  a district that has been developed to serve some purpose;  processing a photosensitive material in order to make an image visible;  a process in which something passes by degrees to a different stage (especially a more advanced or mature stage);  a state in which things are improving; the result of developing (as in the early part of a game of chess);  the act of making some area of land or water more profitable or productive or useful;  (biology) the process of an individual organism growing organically; a purely biological unfolding of events involved in an organism changing gradually from a simple to a more complex level.
  • developmental - adj. of or relating to or constituting development.
  • deviate - adj. markedly different from an accepted norm;  noun a person whose behavior deviates from what is acceptable especially in sexual behavior;  verb turn aside; turn away from;  cause to turn away from a previous or expected course;  be at variance with; be out of line with.
  • deviation - noun deviate behavior;  the error of a compass due to local magnetic disturbances;  the difference between an observed value and the expected value of a variable or function;  a variation that deviates from the standard or norm;  a turning aside (of your course or attention or concern).
  • device - noun any clever maneuver;  an instrumentality invented for a particular purpose;  an emblematic design (especially in heraldry); any ornamental pattern or design (as in embroidery);  something in an artistic work designed to achieve a particular effect.
  • devices - noun an inclination or desire; used in the plural in the phrase `left to your own devices'.
  • devoid - adj. completely lacking;  completely wanting or lacking.
  • devoted - adj. (followed by `to') dedicated exclusively to a purpose or use;  zealous in devotion or affection.
  • dextrin - noun any of various polysaccharides obtained by hydrolysis of starch; a tasteless and odorless gummy substance that is used as a thickening agent and in adhesives and in dietary supplements.
  • dia - noun an intelligence agency of the United States in the Department of Defense; is responsible for providing intelligence in support of military planning and operations and weapons acquisition.
  • diabetes - noun any of several metabolic disorders marked by excessive urination and persistent thirst.
  • diabetic - adj. suffering from diabetes;  of or relating to or causing diabetes;  noun someone who has diabetes.
  • diagnose - verb determine or distinguish the nature of a problem or an illness through a diagnostic analysis;  subject to a medical analysis.
  • diagnosing - noun identifying the nature or cause of some phenomenon.
  • diagnosis - noun identifying the nature or cause of some phenomenon.
  • diagnostic - adj. characteristic or indicative of e.g. a disease; concerned with diagnosis; used for furthering diagnosis.
  • diagnostics - noun the branch of medical science dealing with the classification of disease.
  • diagonal - adj. at an angle; especially connecting two nonadjacent corners of a plane figure or any two corners of a solid that are not in the same face;  having an oblique or slanted direction;  noun(mathematics) a set of entries in a square matrix running diagonally either from the upper left to lower right entry or running from the upper right to lower left entry;  an oblique line of squares of the same color on a checkerboard;  a line or cut across a fabric that is not at right angles to a side of the fabric;  (geometry) a straight line connecting any two vertices of a polygon that are not adjacent;  a punctuation mark (/) used to separate related items of information.
  • diagonally - adv. in a diagonal manner.
  • diagram - noun a drawing intended to explain how something works; a drawing showing the relation between the parts;  verb make a schematic or technical drawing of that shows how things work or how they are constructed.
  • diameter - noun the length of a straight line passing through the center of a circle and connecting two points on the circumference;  a straight line connecting the center of a circle with two points on its perimeter (or the center of a sphere with two points on its surface).
  • diapedesis - noun passage of blood cells (especially white blood cells) through intact capillary walls and into the surrounding tissue.
  • diaphoresis - noun the process of the sweat glands of the skin secreting a salty fluid.
  • diaphragm - noun a mechanical device in a camera that controls size of aperture of the lens;  electro-acoustic transducer that vibrates to receive or produce sound waves;  a contraceptive device consisting of a flexible dome-shaped cup made of rubber or plastic; it is filled with spermicide and fitted over the uterine cervix; (anatomy) a muscular partition separating the abdominal and thoracic cavities; functions in respiration.
  • diaphyseal - adj. relating to the diaphysis of a bone.
  • diaphysis - noun the main (mid) section of a long bone.
  • diarrhea - noun frequent and watery bowel movements; can be a symptom of infection or food poisoning or colitis or a gastrointestinal tumor.
  • diarrheal - adj. of or relating to diarrhea.
  • diarthrosis - noun a joint so articulated as to move freely.
  • diastole - noun the widening of the chambers of the heart between two contractions when the chambers fill with blood.
  • diastolic - adj. of or relating to a diastole or happening during a diastole.
  • dictate - noun a guiding principle;  an authoritative rule;  verb say out loud for the purpose of recording;  rule as a dictator;  issue commands or orders for.
  • die - noun a device used for shaping metal;  a cutting tool that is fitted into a diestock and used for cutting male (external) screw threads on screws or bolts or pipes or rods;  small cubes with 1 to 6 spots on the faces; used to generate random numbers;  verb suffer spiritual death; be damned (in the religious sense);  disappear or come to an end;  pass from physical life and lose all bodily attributes and functions necessary to sustain life;  lose sparkle or bouquet;  to be on base at the end of an inning, of a player;  cut or shape with a die;  be brought to or as if to the point of death by an intense emotion such as embarrassment, amusement, or shame;  languish as with love or desire;  feel indifferent towards;  suffer or face the pain of death;  stop operating or functioning.
  • diencephalon - noun the posterior division of the forebrain; connects the cerebral hemispheres with the mesencephalon.
  • dieresis - noun a diacritical mark (two dots) placed over a vowel in German to indicate a change in sound.
  • diet - noun the act of restricting your food intake (or your intake of particular foods);  the usual food and drink consumed by an organism (person or animal);  a prescribed selection of foods;  a legislative assembly in certain countries (e.g., Japan);  verb eat sparingly, for health reasons or to lose weight;  follow a regimen or a diet, as for health reasons.
  • dietary - adj. of or relating to the diet;  noun a regulated daily food allowance.
  • dietician - noun a specialist in the study of nutrition.
  • differ - verb be different;  be of different opinions.
  • difference - noun the quality of being unlike or dissimilar;  a significant change;  a disagreement or argument about something important;  a variation that deviates from the standard or norm;  the number that remains after subtraction; the number that when added to the subtrahend gives the minuend.
  • different - adj. differing from all others; not ordinary;  unlike in nature or quality or form or degree;  distinctly separate from the first;  distinct or separate;  marked by dissimilarity.
  • differential - adj. relating to or showing a difference;  involving or containing one or more derivatives;  noun a quality that differentiates between similar things;  a bevel gear that permits rotation of two shafts at different speeds; used on the rear axle of automobiles to allow wheels to rotate at different speeds on curves;  the result of mathematical differentiation; the instantaneous change of one quantity relative to another; df(x)/dx.
  • differentially - adv. in a differential manner.
  • differentiate - verb become distinct and acquire a different character;  become different during development;  calculate a derivative; take the derivative;  evolve so as to lead to a new species or develop in a way most suited to the environment;  mark as different;  be a distinctive feature, attribute, or trait; sometimes in a very positive sense.
  • differentiated - adj. made different (especially in the course of development) or shown to be different;  exhibiting biological specialization; adapted during development to a specific function or environment.
  • differentiation - noun the mathematical process of obtaining the derivative of a function;  a discrimination between things as different and distinct;  (biology) the structural adaptation of some body part for a particular function.
  • differently - adv. in another and different manner.
  • difficult - adj. not easy; requiring great physical or mental effort to accomplish or comprehend or endure;  requiring much effort and trouble;  difficult to manage or control.
  • difficulty - noun the quality of being difficult;  a factor causing trouble in achieving a positive result or tending to produce a negative result; a condition or state of affairs almost beyond one's ability to deal with and requiring great effort to bear or overcome;  an effort that is inconvenient.
  • diffuse - adj. spread out; not concentrated in one place;  lacking conciseness;  (of light) transmitted from a broad light source or reflected;  verb move outward;  cause to become widely known; spread or diffuse through.
  • diffused - adj. (of light rays) subjected to scattering by reflection from a rough surface or transmission through a translucent material; (of light) transmitted from a broad light source or reflected.
  • diffusing - adj. spreading by diffusion.
  • diffusion - noun the spread of social institutions (and myths and skills) from one society to another;  (physics) the process of diffusing; the intermingling of molecules in gases and liquids as a result of random thermal agitation;  the act of dispersing or diffusing something;  the property of being diffused or dispersed.
  • digest - noun a periodical that summarizes the news;  something that is compiled (as into a single book or file);  verb soften or disintegrate by means of chemical action, heat, or moisture;  make more concise;  soften or disintegrate, as by undergoing exposure to heat or moisture;  systematize, as by classifying and summarizing; become assimilated into the body;  arrange and integrate in the mind;  put up with something or somebody unpleasant;  convert food into absorbable substances.
  • digested - adj. capable of undergoing digestion.
  • digestible - adj. capable of being converted into assimilable condition in the alimentary canal.
  • digestion - noun learning and coming to understand ideas and information;  the organic process by which food is converted into substances that can be absorbed into the body;  the process of decomposing organic matter (as in sewage) by bacteria or by chemical action or heat.
  • digestive - adj. relating to or having the power to cause or promote digestion;  noun any substance that promotes digestion.
  • digit - noun a finger or toe in human beings or corresponding body part in other vertebrates;  one of the elements that collectively form a system of numeration;  the length of breadth of a finger used as a linear measure.
  • digital - adj. of a circuit or device that represents magnitudes in digits;  relating to or performed with the fingers;  displaying numbers rather than scale positions.
  • digitalis - noun a powerful cardiac stimulant obtained from foxglove; any of several plants of the genus Digitalis.
  • dilate - verb become wider;  add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing.
  • dilated - adj. made wider or larger in all dimensions.
  • dilation - noun the act of expanding an aperture;  a lengthy discussion (spoken or written) on a particular topic.
  • dilute - adj. reduced in strength or concentration or quality or purity; verb lessen the strength or flavor of a solution or mixture;  corrupt, debase, or make impure by adding a foreign or inferior substance; often by replacing valuable ingredients with inferior ones.
  • dilution - noun weakening (reducing the concentration) by the addition of water or a thinner;  a diluted solution.
  • dim - adj. lacking in light; not bright or harsh;  lacking clarity or distinctness;  made dim or less bright;  slow to learn or understand; lacking intellectual acuity;  offering little or no hope;  verb make dim or lusterless;  become dim or lusterless;  switch (a car's headlights) from a higher to a lower beam;  become vague or indistinct;  make dim by comparison or conceal;  become or make darker.
  • dime - noun a United States coin worth one tenth of a dollar;  street name for a packet of illegal drugs that is sold for ten dollars.
  • dimenhydrinate - noun antihistamine and antiemetic (trade name Dramamine) used to treat motion sickness.
  • dimension - noun the magnitude of something in a particular direction (especially length or width or height);  one of three Cartesian coordinates that determine a position in space;  magnitude or extent;  a construct whereby objects or individuals can be distinguished;  verb shape or form to required dimensions;  indicate the dimensions on.
  • dimensional - adj. having dimension--the quality or character or stature proper to a person;  of or relating to dimensions.
  • dimer - noun a compound whose molecules are composed of two identical monomers.
  • diminish - verb lessen the authority, dignity, or reputation of; decrease in size, extent, or range.
  • diminished - adj. (of musical intervals) reduction by a semitone of any perfect or minor musical interval;  impaired by diminution;  (of an organ or body part) diminished in size or strength as a result of disease or injury or lack of use;  made to seem smaller or less (especially in worth).
  • dimple - noun a small natural hollow in the cheek or chin;  any slight depression in a surface;  a chad that has been punched or dimpled but all four corners are still attached;  verb produce dimples while smiling;  mark with, or as if with, dimples.
  • dining - noun the act of eating dinner.
  • dinner - noun the main meal of the day served in the evening or at midday;  a party of people assembled to have dinner together.
  • dioxide - noun an oxide containing two atoms of oxygen in the molecule.
  • dip - noun a gymnastic exercise on the parallel bars in which the body is lowered and raised by bending and straightening the arms;  a brief swim in water;  a candle that is made by repeated dipping in a pool of wax or tallow;  a brief immersion;  tasty mixture or liquid into which bite-sized foods are dipped;  (physics) the angle that a magnetic needle makes with the plane of the horizon;  a depression in an otherwise level surface;  a sudden sharp decrease in some quantity;  a thief who steals from the pockets or purses of others in public places;  verb stain an object by immersing it in a liquid;  go down momentarily;  scoop up by plunging one's hand or a ladle below the surface;  immerse in a disinfectant solution;  place (candle wicks) into hot, liquid wax;  dip into a liquid;  slope downwards; appear to move downward;  lower briefly;  dip into a liquid while eating;  immerse briefly into a liquid so as to wet, coat, or saturate; switch (a car's headlights) from a higher to a lower beam.
  • diploid - adj. of a cell or organism having two sets of chromosomes or twice the haploid number;  noun (genetics) an organism or cell having two sets of chromosomes or twice the haploid number.
  • diploidy - noun the condition of being diploid.
  • diplopia - noun visual impairment in which an object is seen as two objects.
  • dipole - noun an aerial half a wavelength long consisting of two rods connected to a transmission line at the center;  a pair of equal and opposite electric charges or magnetic poles separated by a small distance.
  • dire - adj. causing fear or dread or terror;  fraught with extreme danger; nearly hopeless.
  • direct - adj. lacking compromising or mitigating elements; exact; direct in spatial dimensions; proceeding without deviation or interruption; straight and short;  (of a current) flowing in one direction only;  extended senses; direct in means or manner or behavior or language or action;  similar in nature or effect or relation to another quantity;  moving from west to east on the celestial sphere; or--for planets--around the sun in the same direction as the Earth;  having no intervening persons, agents, conditions;  in precisely the same words used by a writer or speaker;  being an immediate result or consequence;  in a straight unbroken line of descent from parent to child;  adv. without deviation;  verb command with authority;  give directions to; point somebody into a certain direction;  guide the actors in (plays and films);  be in charge of;  plan and direct (a complex undertaking);  specifically design a product, event, or activity for a certain public;  put an address on (an envelope);  intend (something) to move towards a certain goal;  aim or direct at; as of blows, weapons, or objects such as photographic equipment;  lead, as in the performance of a composition;  direct the course; determine the direction of travelling;  cause to go somewhere;  take somebody somewhere.
  • directed - adj. manageable by a supervising agent;  (often used in combination) having a specified direction.
  • directing - adj. showing the way by conducting or leading; imposing direction on.
  • direction - noun a general course along which something has a tendency to develop;  a message describing how something is to be done;  a line leading to a place or point;  the spatial relation between something and the course along which it points or moves;  the act of setting and holding a course;  the act of managing something;  the concentration of attention or energy on something;  something that provides direction or advice as to a decision or course of action;  a formal statement of a command or injunction to do something.
  • directional - adj. relating to or indicating directions in space;  relating to direction toward a (nonspatial) goal;  showing the way by conducting or leading; imposing direction on.
  • directive - adj. showing the way by conducting or leading; imposing direction on;  noun a pronouncement encouraging or banning some activity.
  • directly - adv. without deviation;  in a forthright manner; candidly or frankly;  without anyone or anything intervening;  without delay or hesitation; with no time intervening.
  • dirt - adj. (of roads) not leveled or drained; unsuitable for all year travel;  noun the state of being covered with unclean things; disgraceful gossip about the private lives of other people;  the part of the earth's surface consisting of humus and disintegrated rock; obscene terms for feces.
  • dirty - adj. unpleasantly stormy;  soiled or likely to soil with dirt or grime;  (of behavior or especially language) characterized by obscenity or indecency;  spreading pollution or contamination; especially radioactive contamination;  unethical or dishonest; expressing or revealing hostility or dislike;  obtained illegally or by improper means;  (of a manuscript) defaced with changes;  vile; despicable;  (of color) discolored by impurities; not bright and clear; violating accepted standards or rules;  contaminated with infecting organisms;  verb make soiled, filthy, or dirty.
  • disability - noun the condition of being unable to perform as a consequence of physical or mental unfitness.
  • disaccharide - noun any of a variety of carbohydrates that yield two monosaccharide molecules on complete hydrolysis.
  • disadvantage - noun the quality of having an inferior or less favorable position;  verb put at a disadvantage; hinder, harm.
  • disadvantaged - adj. marked by deprivation especially of the necessities of life or healthful environmental influences.
  • disappear - verb get lost, as without warning or explanation; become less intense and fade away gradually;  cease to exist; become invisible or unnoticeable.
  • disappearance - noun the act of leaving secretly or without explanation;  the event of passing out of sight;  ceasing to exist; gradually ceasing to be visible.
  • disassociation - noun the state of being unconnected in memory or imagination;  a state in which some integrated part of a person's life becomes separated from the rest of the personality and functions independently.
  • disastrous - adj. (of events) having extremely unfortunate or dire consequences; bringing ruin.
  • disc - noun a flat circular plate;  (computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored;  sound recording consisting of a disk with a continuous groove; used to reproduce music by rotating while a phonograph needle tracks in the groove;  something with a round shape like a flat circular plate.
  • disc-shaped - adj. having a flat circular shape.
  • discarded - adj. thrown away.
  • discharge - noun the act of discharging a gun;  the act of venting; the sudden giving off of energy;  the pouring forth of a fluid;  electrical conduction through a gas in an applied electric field;  any of several bodily processes by which substances go out of the body;  a substance that is emitted or released;  a formal written statement of relinquishment;  the termination of someone's employment (leaving them free to depart);  verb eliminate (substances) from the body; release from military service;  pour forth or release;  remove the charge from;  become empty or void of its content;  pronounce not guilty of criminal charges;  cause to go off;  go off or discharge;  leave or unload, especially of passengers or cargo;  free from obligations or duties;  complete or carry out.
  • discharged - adj. having lost your job;  set free as from prison or duty.
  • discipline - noun training to improve strength or self-control;  the act of punishing;  the trait of being well behaved;  a system of rules of conduct or method of practice;  a branch of knowledge;  verb punish in order to gain control or enforce obedience;  train by instruction and practice; especially to teach self-control.
  • discolor - verb change color, often in an undesired manner;  cause to lose or change color;  lose color or turn colorless.
  • discomfort - noun an uncomfortable feeling of mental painfulness or distress;  the state of being tense and feeling pain.
  • disconnect - noun an unbridgeable disparity (as from a failure of understanding);  verb make disconnected, disjoin or unfasten;  pull the plug of (electrical appliances) and render inoperable.
  • disconnection - noun the act of breaking a connection;  an unbridgeable disparity (as from a failure of understanding);  state of being disconnected.
  • discover - verb make a discovery;  make a discovery, make a new finding;  see for the first time; make a discovery;  get to know or become aware of, usually accidentally;  identify as in botany or biology, for example;  make known to the public information that was previously known only to a few people or that was meant to be kept a secret;  discover or determine the existence, presence, or fact of; find unexpectedly.
  • discovered - adj. no longer concealed; uncovered as by opening a curtain; `discovered' is archaic and primarily a theater term; discovered or determined by scientific observation.
  • discovery - noun the act of discovering something;  a productive insight;  something that is discovered;  (law) compulsory pretrial disclosure of documents relevant to a case; enables one side in a litigation to elicit information from the other side concerning the facts in the case.
  • discrete - adj. constituting a separate entity or part.
  • discriminate - adj. marked by the ability to see or make fine distinctions;  noting distinctions with nicety;  verb recognize or perceive the difference;  distinguish;  treat differently on the basis of sex or race.
  • discrimination - noun unfair treatment of a person or group on the basis of prejudice;  the cognitive process whereby two or more stimuli are distinguished.
  • discuss - verb speak with others about (something); talk (something) over in detail; have a discussion;  to consider or examine in speech or writing.
  • discussion - noun an extended communication (often interactive) dealing with some particular topic;  an exchange of views on some topic.
  • disease - noun an impairment of health or a condition of abnormal functioning.
  • diseased - adj. caused by or altered by or manifesting disease or pathology.
  • disfigured - adj. having the appearance spoiled.
  • dish - noun a piece of dishware normally used as a container for holding or serving food;  directional antenna consisting of a parabolic reflector for microwave or radio frequency radiation;  a particular item of prepared food;  the quantity that a dish will hold;  an activity that you like or at which you are superior;  a very attractive or seductive looking woman;  verb make concave; shape like a dish;  provide (usually but not necessarily food).
  • disintegrate - verb break into parts or components or lose cohesion or unity;  lose a stored charge, magnetic flux, or current;  cause to undergo fission or lose particles.
  • disintegration - noun total destruction;  the spontaneous disintegration of a radioactive substance along with the emission of ionizing radiation;  separation into component parts;  in a decomposed state.
  • disk - noun a flat circular plate;  something with a round shape like a flat circular plate;  (computer science) a memory device consisting of a flat disk covered with a magnetic coating on which information is stored;  sound recording consisting of a disk with a continuous groove; used to reproduce music by rotating while a phonograph needle tracks in the groove;  verb draw a harrow over (land).
  • dislocated - adj. separated at the joint.
  • dislocation - noun the act of disrupting an established order so it fails to continue;  an event that results in a displacement or discontinuity;  a displacement of a part (especially a bone) from its normal position (as in the shoulder or the vertebral column).
  • dislodge - verb remove or force from a position of dwelling previously occupied;  remove or force out from a position;  change place or direction.
  • disorder - noun a disturbance of the peace or of public order; condition in which there is a disturbance of normal functioning;  a condition in which things are not in their expected places;  verb bring disorder to;  disturb in mind or make uneasy or cause to be worried or alarmed.
  • disorganized - adj. lacking order or methodical arrangement or function.
  • disorientation - noun confusion (usually transient) about where you are and how to proceed; uncertainty as to direction;  a wild delusion (especially one induced by a hallucinogenic drug).
  • disoriented - adj. socially disoriented;  having lost your bearings; confused as to time or place or personal identity.
  • disparate - adj. including markedly dissimilar elements; fundamentally different or distinct in quality or kind.
  • disparity - noun inequality or difference in some respect.
  • dispersal - noun the act of dispersing or diffusing something.
  • dispersed - adj. distributed or spread over a considerable extent.
  • displace - verb force to move;  take the place of;  move (people) forcibly from their homeland into a new and foreign environment;  put out of its usual place, position, or relationship;  remove or force from a position of dwelling previously occupied;  cause to move, both in a concrete and in an abstract sense;  take the place of or have precedence over.
  • displacement - noun act of removing from office or employment;  to move something from its natural environment;  (psychiatry) a defense mechanism that transfers affect or reaction from the original object to some more acceptable one;  (chemistry) a reaction in which an elementary substance displaces and sets free a constituent element from a compound;  act of taking the place of another especially using underhanded tactics;  the act of uniform movement; an event in which something is displaced without rotation.
  • display - noun something shown to the public;  a visual representation of something;  an electronic device that represents information in visual form;  something intended to communicate a particular impression;  exhibiting openly in public view;  behavior that makes your feelings public;  verb attract attention by displaying some body part or posing; of animals;  to show, make visible or apparent; make clear and visible.
  • disposal - noun the act or means of getting rid of something;  a kitchen appliance for disposing of garbage;  the power to use something or someone;  a method of tending to (especially business) matters.
  • dispose - verb make receptive or willing towards an action or attitude or belief;  give, sell, or transfer to another;  make fit or prepared;  throw or cast away.
  • disproportionately - adv. to a disproportionate degree;  out of proportion.
  • disrupt - verb throw into disorder;  interfere in someone else's activity;  make a break in.
  • disrupted - adj. marked by breaks or gaps.
  • disruption - noun the act of causing disorder;  an act of delaying or interrupting the continuity;  an event that results in a displacement or discontinuity;  a disorderly outburst or tumult.
  • disruptive - adj. characterized by unrest or disorder or insubordination.
  • dissect - verb cut open or cut apart;  make a mathematical, chemical, or grammatical analysis of; break down into components or essential features.
  • dissected - adj. having one or more incisions reaching nearly to the midrib.
  • dissection - noun cutting so as to separate into pieces;  detailed critical analysis or examination one part at a time (as of a literary work);  a minute and critical analysis.
  • dissertation - noun a treatise advancing a new point of view resulting from research; usually a requirement for an advanced academic degree.
  • dissipate - verb live a life or pleasure, especially with respect to alcoholic consumption;  spend frivolously and unwisely;  move away from each other;  to cause to separate and go in different directions.
  • dissipated - adj. preoccupied with the pursuit of pleasure and especially games of chance;  unrestrained by convention or morality.
  • dissipation - noun breaking up and scattering by dispersion; useless or profitless activity; using or expending or consuming thoughtlessly or carelessly;  dissolute indulgence in sensual pleasure.
  • dissociate - verb to undergo a reversible or temporary breakdown of a molecule into simpler molecules or atoms;  regard as unconnected;  part; cease or break association with.
  • dissociation - noun the act of removing from association; (chemistry) the temporary or reversible process in which a molecule or ion is broken down into smaller molecules or ions;  a state in which some integrated part of a person's life becomes separated from the rest of the personality and functions independently.
  • dissolve - noun (film) a gradual transition from one scene to the next; the next scene is gradually superimposed as the former scene fades out;  verb declare void;  come to an end;  bring the association of to an end or cause to break up;  become or cause to become soft or liquid;  pass into a solution;  cause to go into a solution;  become weaker;  cause to fade away;  lose control emotionally;  cause to lose control emotionally;  stop functioning or cohering as a unit.
  • dissolved - adj. (of solid matter) reduced to a liquid form.
  • dissolving - adj. causing to dissolve;  noun the process of going into solution.
  • distal - adj. situated farthest from point of attachment or origin, as of a limb or bone;  directed away from the midline or mesial plane of the body.
  • distally - adv. far from the center.
  • distance - noun the property created by the space between two objects or points;  size of the gap between two places;  indifference by personal withdrawal;  a distant region;  the interval between two times;  a remote point in time;  verb keep at a distance;  go far ahead of.
  • distant - adj. apart in space;  separate or apart in time;  separated in space or coming from or going to a distance;  far apart in relevance or relationship;  remote in manner.
  • distantly - adv. from or at a distance.
  • distend - verb swell from or as if from internal pressure;  cause to expand as it by internal pressure;  become wider.
  • distended - adj. abnormally expanded or increased in size; (`swollen' is sometimes used in combination);  abnormally distended especially by fluids or gas.
  • distensible - adj. capable of being distended; able to stretch and expand.
  • distension - noun the act of expanding by pressure from within;  the state of being stretched beyond normal dimensions.
  • distention - noun the act of expanding by pressure from within;  the state of being stretched beyond normal dimensions.
  • distinct - adj. recognizable; marked;  easy to perceive; especially clearly outlined;  (often followed by `from') not alike; different in nature or quality;  clearly or sharply defined to the mind;  constituting a separate entity or part.
  • distinction - noun a distinguishing difference;  a distinguishing quality;  a discrimination between things as different and distinct; high status importance owing to marked superiority.
  • distinctive - adj. of a feature that helps to distinguish a person or thing;  capable of being classified.
  • distinctively - adv. in an identifiably distinctive manner.
  • distinctly - adv. clear to the mind; with distinct mental discernment; to a distinct degree;  in a distinct and distinguishable manner.
  • distinguish - verb mark as different;  be a distinctive feature, attribute, or trait; sometimes in a very positive sense;  identify as in botany or biology, for example;  make conspicuous or noteworthy; detect with the senses.
  • distinguishable - adj. capable of being perceived as different or distinct;  (often followed by `from') not alike; different in nature or quality.
  • distinguished - adj. set apart from other such things;  used of a person's appearance or behavior; befitting an eminent person;  (used of persons) standing above others in character or attainment or reputation.
  • distinguishing - adj. serving to distinguish or identify a species or group.
  • distortion - noun the mistake of misrepresenting the facts;  the act of distorting something so it seems to mean something it was not intended to mean;  a change for the worse;  a change (usually undesired) in the waveform of an acoustic or analog electrical signal; the difference between two measurements of a signal (as between the input and output signal);  an optical phenomenon resulting from the failure of a lens or mirror to produce a good image;  a shape resulting from distortion.
  • distraction - noun the act of distracting; drawing someone's attention away from something;  mental turmoil;  an obstacle to attention;  an entertainment that provokes pleased interest and distracts you from worries and vexations.
  • distress - noun the seizure and holding of property as security for payment of a debt or satisfaction of a claim;  psychological suffering; extreme physical pain;  a state of adversity (danger or affliction or need);  verb cause mental pain to.
  • distressing - adj. causing distress or worry or anxiety;  bad; unfortunate.
  • distribute - verb give out;  administer or bestow, as in small portions; make available;  be mathematically distributive;  be distributed or spread, as in statistical analyses;  spread throughout a given area; cause to become widely known;  distribute or disperse widely;  to arrange in a systematic order;  cause to be distributed.
  • distributed - adj. spread out or scattered about or divided up.
  • distribution - noun the act of distributing or spreading or apportioning;  the commercial activity of transporting and selling goods from a producer to a consumer;  the spatial property of being scattered about over an area or volume;  (statistics) an arrangement of values of a variable showing their observed or theoretical frequency of occurrence.
  • disturbance - noun the act of disturbing something or someone; setting something in motion;  a disorderly outburst or tumult;  an unhappy and worried mental state;  a noisy fight;  activity that is an intrusion or interruption;  electrical or acoustic activity that can disturb communication;  (psychiatry) a psychological disorder of thought or emotion; a more neutral term than mental illness.
  • disturbed - adj. emotionally unstable and having difficulty coping with personal relationships;  having the place or position changed; affected with madness or insanity;  afflicted with or marked by anxious uneasiness or trouble or grief.
  • disturbing - adj. causing distress or worry or anxiety.
  • disuse - noun the state of something that has been unused and neglected.
  • ditch - noun a long narrow excavation in the earth;  any small natural waterway;  verb crash or crash-land;  make an emergency landing on water;  forsake;  cut a trench in, as for drainage;  sever all ties with, usually unceremoniously or irresponsibly;  throw away.
  • diuresis - noun increased secretion of urine; if not due to increased liquid intake or to the action of a diuretic drug it can be a symptom of diabetes mellitus.
  • diuretic - noun any substance that tends to increase the flow of urine.
  • dive - noun a steep nose-down descent by an aircraft;  a headlong plunge into water;  a cheap disreputable nightclub or dance hall;  verbswim under water;  plunge into water;  drop steeply.
  • diverge - verb move or draw apart;  extend in a different direction; have no limits as a mathematical series;  be at variance with; be out of line with.
  • divergence - noun the act of moving away in different direction from a common point;  an infinite series that has no limit;  a difference between conflicting facts or claims or opinions;  a variation that deviates from the standard or norm.
  • divergent - adj. tending to move apart in different directions; diverging from another or from a standard.
  • divers - adj. many and different.
  • diverse - adj. distinctly dissimilar or unlike;  many and different.
  • diversify - verb vary in order to spread risk or to expand;  spread into new habitats and produce variety or variegate;  make (more) diverse.
  • diversion - noun a turning aside (of your course or attention or concern);  an activity that diverts or amuses or stimulates;  an attack calculated to draw enemy defense away from the point of the principal attack.
  • diversity - noun the condition or result of being changed;  noticeable heterogeneity.
  • divert - verb send on a course or in a direction different from the planned or intended one;  withdraw (money) and move into a different location, often secretly and with dishonest intentions;  turn aside; turn away from;  occupy in an agreeable, entertaining or pleasant fashion.
  • diverted - adj. pleasantly occupied.
  • diverticulitis - noun inflammation of a diverticulum in the digestive tract (especially the colon); characterized by painful abdominal cramping and fever and constipation.
  • diverting - adj. providing enjoyment; pleasantly entertaining.
  • divide - noun a serious disagreement between two groups of people (typically producing tension or hostility);  a ridge of land that separates two adjacent river systems;  verb perform a division; separate into parts or portions;  force, take, or pull apart;  come apart; make a division or separation;  act as a barrier between; stand between.
  • divided - adj. distributed in portions (often equal) on the basis of a plan or purpose;  having a median strip or island between lanes of traffic moving in opposite directions;  separated into parts or pieces.
  • dividing - adj. serving simply to separate or partition;  serving to divide or marking a division.
  • diving - noun an athletic competition that involves diving into water; a headlong plunge into water.
  • division - noun the act or process of dividing;  the act of dividing or partitioning; separation by the creation of a boundary that divides or keeps apart;  an arithmetic operation that is the inverse of multiplication; the quotient of two numbers is computed;  discord that splits a group;  an army unit large enough to sustain combat;  a group of ships of similar type;  a unit of the United States Air Force usually comprising two or more wings;  an administrative unit in government or business;  (botany) taxonomic unit of plants corresponding to a phylum;  (biology) a group of organisms forming a subdivision of a larger category;  one of the portions into which something is regarded as divided and which together constitute a whole;  a league ranked by quality.
  • dizygotic - adj. derived from two separately fertilized eggs.
  • dizziness - noun a reeling sensation; a feeling that you are about to fall.
  • dizzy - adj. having or causing a whirling sensation; liable to falling; lacking seriousness; given to frivolity;  verb make dizzy or giddy.
  • dl - noun a metric unit of volume equal to one tenth of a liter.
  • dmd - noun a doctor's degree in dental medicine.
  • dna - noun (biochemistry) a long linear polymer found in the nucleus of a cell and formed from nucleotides and shaped like a double helix; associated with the transmission of genetic information.
  • do - noun the syllable naming the first (tonic) note of any major scale in solmization;  doctor's degree in osteopathy;  an uproarious party; verb create or design, often in a certain way;  travel or traverse (a distance);  carry on or manage;  get (something) done;  proceed or get along;  behave in a certain manner; show a certain behavior; conduct or comport oneself;  arrange attractively;  give rise to; cause to happen or occur, not always intentionally;  carry out or perform an action;  engage in;  carry out or practice; as of jobs and professions; be sufficient; be adequate, either in quality or quantity;  spend time in prison or in a labor camp.
  • docking - noun the act of securing an arriving vessel with ropes.
  • doctor - noun children take the roles of physician or patient or nurse and pretend they are at the physician's office;  a licensed medical practitioner;  a person who holds Ph.D. degree (or the equivalent) from an academic institution;  (Roman Catholic Church) a title conferred on 33 saints who distinguished themselves through the orthodoxy of their theological teaching;  verb give medical treatment to;  restore by replacing a part or putting together what is torn or broken;  alter and make impure, as with the intention to deceive.
  • doctoral - adj. of or relating to a doctor or doctorate.
  • doctorate - noun one of the highest earned academic degrees conferred by a university.
  • documented - adj. furnished with or supported by documents; officially documented;  established as genuine.
  • dog - noun a member of the genus Canis (probably descended from the common wolf) that has been domesticated by man since prehistoric times; occurs in many breeds;  informal term for a man; metal supports for logs in a fireplace;  a hinged catch that fits into a notch of a ratchet to move a wheel forward or prevent it from moving backward;  a smooth-textured sausage of minced beef or pork usually smoked; often served on a bread roll;  someone who is morally reprehensible;  a dull unattractive unpleasant girl or woman; verb go after with the intent to catch.
  • dollar - noun a symbol of commercialism or greed;  a United States coin worth one dollar;  a piece of paper money worth one dollar;  the basic monetary unit in many countries; equal to 100 cents.
  • domain - noun a knowledge domain that you are interested in or are communicating about;  territory over which rule or control is exercised;  the set of values of the independent variable for which a function is defined;  people in general; especially a distinctive group of people with some shared interest;  a particular environment or walk of life.
  • dome - noun a hemispherical roof;  a stadium that has a roof;  a concave shape whose distinguishing characteristic is that the concavity faces downward;  informal terms for a human head.
  • dome-shaped - adj. having the shape of a dome.
  • domed - adj. having a hemispherical vault or dome.
  • dominance - noun the organic phenomenon in which one of a pair of alleles present in a genotype is expressed in the phenotype and the other allele of the pair is not;  the state that exists when one person or group has power over another;  superior development of one side of the body;  the power or right to give orders or make decisions.
  • dominant - adj. exercising influence or control;  (of genes) producing the same phenotype whether its allele is identical or dissimilar;  noun(music) the fifth note of the diatonic scale;  an allele that produces the same phenotype whether its paired allele is identical or different.
  • dominated - adj. controlled or ruled by superior authority or power; harassed by persistent nagging.
  • dominican - adj. of or relating to Saint Dominic or the Dominican order;  of or relating to or characteristic of the Dominican Republic or its people;  noun a Roman Catholic friar wearing the black mantle of the Dominican order.
  • don - noun a Spanish courtesy title or form of address for men that is prefixed to the forename;  a European river in southwestern Russia; flows into the Sea of Azov;  Celtic goddess; mother of Gwydion and Arianrhod; corresponds to Irish Danu;  a Spanish gentleman or nobleman;  the head of an organized crime family; teacher at a university or college (especially at Cambridge or Oxford);  verb put clothing on one's body.
  • donate - verb give to a charity or good cause.
  • donated - adj. given freely especially to a cause or fund.
  • donation - noun act of giving in common with others for a common purpose especially to a charity;  a voluntary gift (as of money or service or ideas) made to some worthwhile cause.
  • done - adj. cooked until ready to serve;  having finished or arrived at completion.
  • donor - noun person who makes a gift of property;  (medicine) someone who gives blood or tissue or an organ to be used in another person (the host).
  • door - noun a swinging or sliding barrier that will close the entrance to a room or building or vehicle;  a room that is entered via a door;  a structure where people live or work (usually ordered along a street or road);  anything providing a means of access (or escape);  the entrance (the space in a wall) through which you enter or leave a room or building; the space that a door can close.
  • dopamine - noun a monoamine neurotransmitter found in the brain and essential for the normal functioning of the central nervous system; as a drug (trade names Dopastat and Intropin) it is used to treat shock and hypotension.
  • dormant - adj. inactive but capable of becoming active;  of e.g. volcanos; not erupting and not extinct;  in a condition of biological rest or suspended animation.
  • dorsal - adj. belonging to or on or near the back or upper surface of an animal or organ or part;  facing away from the axis of an organ or organism.
  • dorsally - adv. in a dorsal location or direction.
  • dorsiflexion - noun the act of bending backward (of the body or a body part).
  • dorsoventrally - adv. in a dorsoventral direction.
  • dorsum - noun the back of the body of a vertebrate or any analogous surface (as the upper or outer surface of an organ or appendage or part);  the posterior part of a human (or animal) body from the neck to the end of the spine.
  • dose - noun a measured portion of medicine taken at any one time; the quantity of an active agent (substance or radiation) taken in or absorbed at any one time;  street name for lysergic acid diethylamide;  a communicable infection transmitted by sexual intercourse or genital contact;  verb treat with an agent; add (an agent) to;  administer a drug to.
  • dot - noun the shorter of the two telegraphic signals used in Morse code;  street name for lysergic acid diethylamide;  the United States federal department that institutes and coordinates national transportation programs; created in 1966;  a very small circular shape;  verb mark with a dot;  make a dot or dots;  scatter or intersperse like dots or studs;  distribute loosely.
  • dotted - adj. having a pattern of dots;  having gaps or spaces.
  • double - adj. having two meanings with intent to deceive;  large enough for two;  twice as great or many;  consisting of or involving two parts or components usually in pairs;  having more than one decidedly dissimilar aspects or qualities;  used of flowers having more than the usual number of petals in crowded or overlapping arrangements;  used of homologous chromosomes associated in pairs in synapsis;  adv. two together;  downward and forward;  to double the degree;  noun a base hit on which the batter stops safely at second base;  a quantity that is twice as great as another; someone who closely resembles a famous person (especially an actor);  a stand-in for movie stars to perform dangerous stunts; raising the stakes in a card game by a factor of 2;  verb increase twofold;  hit a two-base hit;  do double duty; serve two purposes or have two functions;  bridge: make a demand for (a card or suit); make or do or perform again;  bend over or curl up, usually with laughter or pain.
  • double negative - noun a grammatically substandard but emphatic negative;  an affirmative constructed from two negatives.
  • doubled - adj. twice as great or many.
  • doubles - noun tennis played with two players on each side; badminton played with two players on each side.
  • doubling - noun raising the stakes in a card game by a factor of 2; increase by a factor of two.
  • douche - noun irrigation with a jet of water or medicated solution into or around a body part (especially the vagina) to treat infections or cleanse from odorous contents;  a small syringe with detachable nozzles; used for vaginal lavage and enemas;  verb direct a spray of water into a bodily cavity, for cleaning.
  • doughnut-shaped - adj. shaped like a ring.
  • douglas - noun United States politician who proposed that individual territories be allowed to decide whether they would have slavery; he engaged in a famous series of debates with Abraham Lincoln (1813-1861).
  • down - adj. not functioning (temporarily or permanently);  shut; understood perfectly;  being put out by a strikeout;  extending or moving from a higher to a lower place;  becoming progressively lower;  being or moving lower in position or less in some value;  low in spirits;  lower than previously;  adv. spatially or metaphorically from a higher to a lower level or position;  away from a more central or a more northerly place;  paid in cash at time of purchase;  in an inactive or inoperative state;  to a lower intensity;  from an earlier time;  noun(American football) a complete play to advance the football;  soft fine feathers;  fine soft dense hair (as the fine short hair of cattle or deer or the wool of sheep or the undercoat of certain dogs);  (usually plural) a rolling treeless highland with little soil;  English physician who first described Down's syndrome (1828-1896);  verb bring down or defeat (an opponent);  cause to come or go down;  shoot at and force to come down;  improve or perfect by pruning or polishing;  eat immoderately;  drink down entirely.
  • downhill - adj. sloping down rather steeply;  adv. toward the bottom of a hill;  toward a lower or inferior state;  noun a ski race down a trail; the downward slope of a hill.
  • download - verb transfer a file or program from a central computer to a smaller computer or to a computer at a remote location.
  • downside - noun a negative aspect of something that is generally positive.
  • downstream - adj. in the direction of a stream's current;  adv. away from the source or with the current.
  • downward - adj. extending or moving from a higher to a lower place;  adv. spatially or metaphorically from a higher to a lower level or position.
  • dozens - noun a large number or amount.
  • dp - noun a person forced to flee from home or country.
  • draft - noun the act of moving a load by drawing or pulling;  a dose of liquid medicine;  a preliminary sketch of a design or picture;  a regulator for controlling the flow of air in a fireplace;  the depth of a vessel's keel below the surface (especially when loaded); preliminary version of a written work;  a serving of drink (usually alcoholic) drawn from a keg;  a current of air (usually coming into a room or vehicle);  a document ordering the payment of money; drawn by one person or bank on another;  a large and hurried swallow; compulsory military service;  verb draw up an outline or sketch for something;  engage somebody to enter the army;  make a blueprint of.
  • drag - noun the act of dragging (pulling with force);  clothing that is conventionally worn by the opposite sex (especially women's clothing when worn by a man);  something tedious and boring; something that slows or delays progress;  the phenomenon of resistance to motion through a fluid;  a slow inhalation (as of tobacco smoke);  verb proceed for an extended period of time;  persuade to come away from something attractive or interesting;  pull, as against a resistance;  to lag or linger behind;  move slowly and as if with great effort;  use a computer mouse to move icons on the screen and select commands from a menu;  suck in or take (air);  search (as the bottom of a body of water) for something valuable or lost;  draw slowly or heavily;  walk without lifting the feet;  force into some kind of situation, condition, or course of action.
  • drain - noun emptying something accomplished by allowing liquid to run out of it;  a gradual depletion of energy or resources;  a pipe through which liquid is carried away;  tube inserted into a body cavity (as during surgery) to remove unwanted material;  verb empty of liquid; drain the liquid from;  deplete of resources;  flow off gradually; make weak.
  • drainage - noun emptying something accomplished by allowing liquid to run out of it.
  • drained - adj. emptied or exhausted of (as by drawing off e.g. water or other liquid);  drained of electric charge; discharged;  very tired.
  • draining - adj. having a debilitating effect.
  • dramamine - noun antihistamine and antiemetic (trade name Dramamine) used to treat motion sickness.
  • dramatic - adj. suitable to or characteristic of drama;  sensational in appearance or thrilling in effect;  used of a singer or singing voice that is marked by power and expressiveness and a histrionic or theatrical style;  pertaining to or characteristic of drama.
  • dramatically - adv. in a dramatic manner;  with respect to dramatic value;  in a very impressive manner.
  • drastic - adj. forceful and extreme and rigorous.
  • drastically - adv. in a drastic manner.
  • draw - noun the act of drawing or hauling something;  poker in which a player can discard cards and receive substitutes from the dealer; (American football) the quarterback moves back as if to pass and then hands the ball to the fullback who is running toward the line of scrimmage;  a playing card or cards dealt or taken from the pack; anything (straws or pebbles etc.) taken or chosen at random;  the finish of a contest in which the score is tied and the winner is undecided;  a gully that is shallower than a ravine;  a golf shot that curves to the left for a right-handed golfer;  an entertainer who attracts large audiences;  verb cause to localize at one point;  flatten, stretch, or mold metal or glass, by rolling or by pulling it through a die or by stretching;  steep; pass through a strainer;  reduce the diameter of (a wire or metal rod) by pulling it through a die;  contract; bring or lead someone to a certain action or condition;  select or take in from a given group or region;  make, formulate, or derive in the mind;  choose at random;  move or pull so as to cover or uncover something;  earn or achieve a base by being walked by the pitcher; engage in drawing;  represent by making a drawing of, as with a pencil, chalk, etc. on a surface;  write a legal document or paper; elicit responses, such as objections, criticism, applause, etc.;  take liquid out of a container or well;  bring, take, or pull out of a container or from under a cover;  move or go steadily or gradually;  cause to flow;  pull (a person) apart with four horses tied to his extremities, so as to execute him;  require a specified depth for floating;  allow a draft;  remove the entrails of;  give a description of;  finish a game with an equal number of points, goals, etc.;  suck in or take (air);  guide or pass over something;  pull back the sling of (a bow);  thread on or as if on a string;  cause to move by pulling;  direct toward itself or oneself by means of some psychological power or physical attributes;  take in, also metaphorically;  make a mark or lines on a surface;  cause to move in a certain direction by exerting a force upon, either physically or in an abstract sense;  get or derive;  remove (a commodity) from (a supply source).
  • drawback - noun the quality of being a hindrance.
  • drawbridge - noun a bridge that can be raised to block passage or to allow boats or ships to pass beneath it.
  • drawing - noun act of getting or draining something such as electricity or a liquid from a source;  the creation of artistic pictures or diagrams;  a representation of forms or objects on a surface by means of lines;  an illustration that is drawn by hand and published in a book or magazine;  the act of moving a load by drawing or pulling; players buy (or are given) chances and prizes are distributed by casting lots.
  • drawn - adj. having the curtains or draperies closed or pulled shut; used of vehicles pulled forward (often used in combination);  showing the wearing effects of overwork or care or suffering.
  • dream - noun a state of mind characterized by abstraction and release from reality;  a series of mental images and emotions occurring during sleep;  imaginative thoughts indulged in while awake;  someone or something wonderful;  a fantastic but vain hope (from fantasies induced by the opium pipe);  a cherished desire;  verbhave a daydream; indulge in a fantasy;  experience while sleeping.
  • dreaming - noun a series of mental images and emotions occurring during sleep;  imaginative thoughts indulged in while awake.
  • drier - noun an appliance that removes moisture;  a substance that promotes drying (e.g., calcium oxide absorbs water and is used to remove moisture).
  • drift - noun a horizontal (or nearly horizontal) passageway in a mine;  the pervading meaning or tenor;  a general tendency to change (as of opinion);  something that is heaped up by the wind or by water currents;  a force that moves something along;  the gradual departure from an intended course due to external influences (as a ship or plane);  a process of linguistic change over a period of time; verb be piled up in banks or heaps by the force of wind or a current; be subject to fluctuation;  drive slowly and far afield for grazing; cause to be carried by a current;  move in an unhurried fashion;  vary or move from a fixed point or course;  move about aimlessly or without any destination, often in search of food or employment;  be in motion due to some air or water current;  wander from a direct course or at random;  live unhurriedly, irresponsibly, or freely.
  • drilled - adj. trained in a skill by repetitious practice.
  • drilling - noun the act of drilling;  the act of drilling a hole in the earth in the hope of producing petroleum.
  • drink - noun the act of drinking alcoholic beverages to excess;  a single serving of a beverage;  any large deep body of water;  the act of swallowing;  any liquid suitable for drinking;  verb take in liquids; consume alcohol;  drink excessive amounts of alcohol; be an alcoholic;  be fascinated or spell-bound by; pay close attention to; propose a toast to.
  • drinking - noun the act of consuming liquids;  the act of drinking alcoholic beverages to excess.
  • drip - noun (architecture) a projection from a cornice or sill designed to protect the area below from rainwater (as over a window or doorway);  the sound of a liquid falling drop by drop;  flowing in drops; the formation and falling of drops of liquid;  verb fall in drops;  let or cause to fall in drops.
  • dripping - adj. having liquid falling in drops;  wet with secreted or exuded moisture such as sweat or tears;  adv. extremely wet;  noun a liquid (as water) that flows in drops (as from the eaves of house);  the sound of a liquid falling drop by drop.
  • drive - noun the act of applying force to propel something;  a journey in a vehicle (usually an automobile);  the act of driving a herd of animals overland;  (sports) a hard straight return (as in tennis or squash);  hitting a golf ball off of a tee with a driver;  a wide scenic road planted with trees;  a mechanism by which force or power is transmitted in a machine;  (computer science) a device that writes data onto or reads data from a storage medium;  the trait of being highly motivated;  a physiological state corresponding to a strong need or desire;  a series of actions advancing a principle or tending toward a particular end;  a road leading up to a private house;  verbmove into a desired direction of discourse;  hunting: chase from cover into more open ground;  hunting: search for game;  cause to function by supplying the force or power for or by controlling; excavate horizontally;  hit very hard and straight with the bat swinging more or less vertically;  strike with a driver, as in teeing off; cause to move rapidly by striking or throwing with force;  push, propel, or press with force;  compel somebody to do something, often against his own will or judgment;  travel or be transported in a vehicle;  proceed along in a vehicle;  operate or control a vehicle; urge forward;  cause someone or something to move by driving; move by being propelled by a force;  work as a driver;  to compel or force or urge relentlessly or exert coercive pressure on, or motivate strongly;  have certain properties when driven;  cause to move back by force or influence;  force into or from an action or state, either physically or metaphorically;  strive and make an effort to reach a goal.
  • driven - adj. urged or forced to action through moral pressure; compelled forcibly by an outside agency;  strongly motivated to succeed.
  • driver - noun a golf club (a wood) with a near vertical face that is used for hitting long shots from the tee;  (computer science) a program that determines how a computer will communicate with a peripheral device;  the operator of a motor vehicle;  a golfer who hits the golf ball with a driver;  someone who drives animals that pull a vehicle.
  • driving - adj. having the power of driving or impelling;  acting with vigor;  noun the act of controlling and steering the movement of a vehicle or animal;  hitting a golf ball off of a tee with a driver.
  • drop - noun the act of dropping something;  a central depository where things can be left or picked up;  a sudden sharp decrease in some quantity;  a free and rapid descent by the force of gravity;  a predetermined hiding place for the deposit and distribution of illicit goods (such as drugs or stolen property);  a small indefinite quantity (especially of a liquid);  a shape that is spherical and small;  a curtain that can be lowered and raised onto a stage from the flies; often used as background scenery;  a steep high face of rock;  verb give birth; used for animals;  stop pursuing or acting;  go down in value; change from one level to another;  utter casually;  lose (a game); leave or unload, especially of passengers or cargo;  to fall vertically; let fall to the ground;  terminate an association with;  grow worse; lower the pitch of (musical notes);  leave undone or leave out;  cause to fall by or as if by delivering a blow;  get rid of;  let or cause to fall in drops;  fall or drop to a lower place or level;  pay out;  stop associating with;  hang freely.
  • dropped - adj. (used of a mammal) born.
  • dropping - adj. coming down freely under the influence of gravity.
  • drowsiness - noun a very sleepy state.
  • drug - noun a substance that is used as a medicine or narcotic;  verbadminister a drug to;  use recreational drugs.
  • drug-free - adj. characteristic of a person not taking illegal drugs or of a place where no illegal drugs are used.
  • drum - noun small to medium-sized bottom-dwelling food and game fishes of shallow coastal and fresh waters that make a drumming noise;  a musical percussion instrument; usually consists of a hollow cylinder with a membrane stretched across each end;  a cylindrical metal container used for shipping or storage of liquids;  the sound of a drum;  a hollow cast-iron cylinder attached to the wheel that forms part of the brakes;  a bulging cylindrical shape; hollow with flat ends; verb play a percussion instrument;  make a rhythmic sound;  study intensively, as before an exam.
  • drunkard - noun a chronic drinker.
  • dry - adj. practicing complete abstinence from alcoholic beverages; lacking warmth or emotional involvement;  having a large proportion of strong liquor;  without a mucous or watery discharge;  humorously sarcastic or mocking;  (of food) eaten without a spread or sauce or other garnish;  having no adornment or coloration;  unproductive especially of the expected results;  used of solid substances in contrast with liquid ones;  lacking interest or stimulation; dull and lifeless;  (of liquor) having a low residual sugar content because of decomposition of sugar during fermentation;  not shedding tears;  free from liquid or moisture; lacking natural or normal moisture or depleted of water; or no longer wet;  not producing milk;  opposed to or prohibiting the production and sale of alcoholic beverages;  lacking moisture or volatile components;  noun a reformer who opposes the use of intoxicating beverages;  verb remove the moisture from and make dry;  become dry or drier.
  • dryness - noun the condition of not containing or being covered by a liquid (especially water);  objectivity and detachment;  moderation in or abstinence from alcohol or other drugs.
  • dual - adj. a grammatical number category referring to two items or units as opposed to one item (singular) or more than two items (plural);  consisting of or involving two parts or components usually in pairs;  having more than one decidedly dissimilar aspects or qualities.
  • dub - verb provide (movies) with a soundtrack of a foreign language; give a nickname to;  raise (someone) to knighthood.
  • duck - noun small wild or domesticated web-footed broad-billed swimming bird usually having a depressed body and short legs;  a heavy cotton fabric of plain weave; used for clothing and tents;  flesh of a duck (domestic or wild);  (cricket) a score of nothing by a batsman;  verb to move (the head or body) quickly downwards or away;  submerge or plunge suddenly;  avoid or try to avoid fulfilling, answering, or performing (duties, questions, or issues);  dip into a liquid.
  • duct - noun an enclosed conduit for a fluid;  a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance;  a continuous tube formed by a row of elongated cells lacking intervening end walls.
  • ductless - adj. not having a duct.
  • due - adj. owed and payable immediately or on demand;  suitable to or expected in the circumstances;  scheduled to arrive;  adv. directly or exactly; straight;  noun that which is deserved or owed;  a payment that is due (e.g., as the price of membership).
  • dull - adj. (of business) not active or brisk;  emitting or reflecting very little light;  (of color) very low in saturation; highly diluted;  darkened with overcast;  not having a sharp edge or point;  not keenly felt; lacking in liveliness or animation;  being or made softer or less loud or clear;  not clear and resonant; sounding as if striking with or against something relatively soft;  blunted in responsiveness or sensibility;  slow to learn or understand; lacking intellectual acuity;  so lacking in interest as to cause mental weariness;  verb make less lively or vigorous;  become dull or lusterless in appearance; lose shine or brightness;  make dull in appearance;  make dull or blunt; become less interesting or attractive;  make numb or insensitive; deaden (a sound or noise), especially by wrapping.
  • dumped - adj. that is dropped in a heap.
  • dumping - noun selling goods abroad at a price below that charged in the domestic market.
  • duodenal - adj. in or relating to the duodenum.
  • duodenum - noun the part of the small intestine between the stomach and the jejunum.
  • dura - noun the outermost (and toughest) of the 3 meninges.
  • durable - adj. existing for a long time;  very long lasting;  serviceable for a long time.
  • dural - adj. of or relating to the dura mater.
  • duration - noun continuance in time;  the property of enduring or continuing in time;  the period of time during which something continues.
  • dusky - adj. lighted by or as if by twilight;  naturally having skin of a dark color.
  • dust - noun fine powdery material such as dry earth or pollen that can be blown about in the air;  free microscopic particles of solid material;  the remains of something that has been destroyed or broken up;  verb remove the dust from;  rub the dust over a surface so as to blur the outlines of a shape;  cover with a light dusting of a substance;  distribute loosely.
  • dwarf - noun a person who is markedly small;  a legendary creature resembling a tiny old man; lives in the depths of the earth and guards buried treasure;  verb check the growth of;  make appear small by comparison.
  • dwarfism - noun a genetic abnormality resulting in short stature.
  • dwell - verb inhabit or live in;  originate (in);  think moodily or anxiously about something;  come back to.
  • dwelling - noun housing that someone is living in.
  • dye - noun a usually soluble substance for staining or coloring e.g. fabrics or hair;  verb color with dye.
  • dying - adj. in or associated with the process of passing from life or ceasing to be;  eagerly desirous;  noun the time when something ends.
  • dynamic - adj. characterized by action or forcefulness or force of personality;  of or relating to dynamics;  expressing action rather than a state of being; used of verbs (e.g. `to run') and participial adjectives (e.g. `running' in `running water');  noun an efficient incentive.
  • dynamically - adv. in a forceful dynamic manner.
  • dynamics - noun the branch of mechanics concerned with the forces that cause motions of bodies.
  • dysfunction - noun (medicine) any disturbance in the function of an organ or body part.
  • dysfunctional - adj. (of a trait or condition) failing to serve an adjustive purpose;  impaired in function; especially of a bodily system or organ.
  • dyspnea - noun difficult or labored respiration.
  • dystrophy - noun any degenerative disorder resulting from inadequate or faulty nutrition;  any of several hereditary diseases of the muscular system characterized by weakness and wasting of skeletal muscles.
  • e - noun the 5th letter of the Roman alphabet;  the base of the natural system of logarithms; approximately equal to 2.718282...;  the cardinal compass point that is at 90 degrees;  a radioactive transuranic element produced by bombarding plutonium with neutrons;  a fat-soluble vitamin that is essential for normal reproduction; an important antioxidant that neutralizes free radicals in the body.
  • ea - noun the Babylonian god of wisdom; son of Apsu and father of Marduk; counterpart of the Sumerian Enki; as one of the supreme triad including Anu and Bel he was assigned control of the watery element.
  • each - adj. (used of count nouns) every one considered individually; adv. to or from every one of two or more (considered individually).
  • eager - adj. having or showing keen interest or intense desire or impatient expectancy;  marked by active interest and enthusiasm; noun a high wave (often dangerous) caused by tidal flow (as by colliding tidal currents or in a narrow estuary).
  • ear - noun the sense organ for hearing and equilibrium;  good hearing;  attention to what is said;  fruiting spike of a cereal plant especially corn;  the externally visible cartilaginous structure of the external ear.
  • earlier - adj. (comparative and superlative of `early') more early than; most early;  adv. earlier in time; previously;  before now; comparatives of `soon' or `early'.
  • earliest - adj. (comparative and superlative of `early') more early than; most early;  adv. with the least delay.
  • earlobe - noun the fleshy pendulous part of the external human ear.
  • early - adj. at or near the beginning of a period of time or course of events or before the usual or expected time;  being or occurring at an early stage of development;  of an early stage in the development of a language or literature;  very young;  belonging to the distant past; expected in the near future;  adv. before the usual time or the time expected;  in good time;  during an early stage.
  • earn - verb acquire or deserve by one's efforts or actions;  earn on some commercial or business transaction; earn as salary or wages.
  • earth - noun the abode of mortals (as contrasted with heaven or hell);  the 3rd planet from the sun; the planet we live on;  the loose soft material that makes up a large part of the land surface;  once thought to be one of four elements composing the universe (Empedocles);  a connection between an electrical device and a large conducting body, such as the earth (which is taken to be at zero voltage);  the concerns of this life as distinguished from heaven and the afterlife;  the solid part of the earth's surface;  verb connect to the earth;  hide in the earth like a hunted animal.
  • ease - noun freedom from difficulty or hardship or effort;  freedom from constraint or embarrassment;  a freedom from financial difficulty that promotes a comfortable state;  freedom from activity (work or strain or responsibility);  the condition of being comfortable or relieved (especially after being relieved of distress);  verb move gently or carefully;  lessen pain or discomfort; alleviate;  make easier; lessen the intensity of or calm.
  • eased - adj. (of pain or sorrow) made easier to bear.
  • easily - adv. without question;  with ease (`easy' is sometimes used informally for `easily');  indicating high probability; in all likelihood.
  • east - adj. situated in or facing or moving toward the east;  adv. to, toward, or in the east;  noun the countries of Asia;  the region of the United States lying north of the Ohio River and east of the Mississippi River;  the cardinal compass point that is at 90 degrees.
  • eastern - adj. lying toward or situated in the east;  relating to or characteristic of regions of eastern parts of the world;  of or characteristic of eastern regions of the United States;  from the east; used especially of winds;  lying in or toward the east.
  • easy - adj. obtained with little effort or sacrifice, often obtained illegally;  less in demand and therefore readily obtainable;  casual and unrestrained in sexual behavior;  affording comfort;  not strict;  posing no difficulty; requiring little effort;  free from worry or anxiety;  marked by moderate steepness;  having little impact;  not hurried or forced; affording pleasure;  readily exploited or tricked;  in fortunate circumstances financially; moderately rich;  adv. in a relaxed manner; or without hardship;  with ease (`easy' is sometimes used informally for `easily');  without speed (`slow' is sometimes used informally for `slowly').
  • eat - verb eat a meal; take a meal;  take in solid food;  worry or cause anxiety in a persistent way;  cause to deteriorate due to the action of water, air, or an acid;  use up (resources or materials);  take in food; used of animals only.
  • eating - noun the act of consuming food.
  • eats - noun informal terms for a meal.
  • eccentric - adj. not having a common center; not concentric; conspicuously or grossly unconventional or unusual;  noun a person with an unusual or odd personality;  a person of a specified kind (usually with many eccentricities).
  • eccrine - adj. (of exocrine glands) producing a clear aqueous secretion without releasing part of the secreting cell; important in regulating body temperature.
  • ecf - noun liquid containing proteins and electrolytes including the liquid in blood plasma and interstitial fluid.
  • ecg - noun a graphical recording of the cardiac cycle produced by an electrocardiograph.
  • echo - noun the persistence of a sound after its source has stopped; a reply that repeats what has just been said;  (Greek mythology) a nymph who was spurned by Narcissus and pined away until only her voice remained;  verb call to mind;  to say again or imitate;  ring or echo with sound.
  • echocardiogram - noun a graphical image of the heart produced by an echocardiograph.
  • echocardiography - noun a noninvasive diagnostic procedure that uses ultrasound to study to structure and motions of the heart.
  • economic - adj. using the minimum of time or resources necessary for effectiveness;  financially rewarding;  concerned with worldly necessities of life (especially money);  of or relating to the science of economics;  of or relating to an economy, the system of production and management of material wealth.
  • economics - noun the branch of social science that deals with the production and distribution and consumption of goods and services and their management.
  • ectoderm - noun the outer germ layer that develops into skin and nervous tissue.
  • ectodermal - adj. of or relating to the ectoderm.
  • ectopic - adj. exhibiting ectopia.
  • eczema - noun generic term for inflammatory conditions of the skin; particularly with vesiculation in the acute stages.
  • ed - noun impotence resulting from a man's inability to have or maintain an erection of his penis.
  • edema - noun swelling from excessive accumulation of serous fluid in tissue.
  • edge - noun a sharp side formed by the intersection of two surfaces of an object;  a strip near the boundary of an object;  a slight competitive advantage;  the attribute of urgency;  the boundary of a surface;  a line determining the limits of an area;  verb provide with an edge;  advance slowly, as if by inches;  lie adjacent to another or share a boundary;  provide with a border or edge.
  • educate - verb give an education to;  train to be discriminative in taste or judgment;  create by training and teaching.
  • educated - adj. possessing an education (especially having more than average knowledge);  having or based on relevant experience.
  • education - noun the profession of teaching (especially at a school or college or university);  the activities of educating or instructing; activities that impart knowledge or skill;  the result of good upbringing (especially knowledge of correct social behavior);  the gradual process of acquiring knowledge;  knowledge acquired by learning and instruction;  the United States federal department that administers all federal programs dealing with education (including federal aid to educational institutions and students); created 1979.
  • educational - adj. providing knowledge;  relating to the process of education.
  • edwin - noun king of Northumbria who was converted to Christianity (585-633).
  • eeg - noun a graphical record of electrical activity of the brain; produced by an electroencephalograph.
  • efface - verb make inconspicuous;  remove completely from recognition or memory;  remove by or as if by rubbing or erasing.
  • effect - noun (of a law) having legal validity;  an impression (especially one that is artificial or contrived);  the central meaning or theme of a speech or literary work;  a symptom caused by an illness or a drug;  an outward appearance;  a phenomenon that follows and is caused by some previous phenomenon;  verb produce;  act so as to bring into existence.
  • effective - adj. existing in fact; not theoretical; real;  able to accomplish a purpose; functioning effectively;  exerting force or influence;  producing or capable of producing an intended result or having a striking effect;  works well as a means or remedy;  ready for service.
  • effectively - adv. in actuality or reality or fact;  in an effective manner.
  • effectiveness - noun power to be effective; the quality of being able to bring about an effect;  capacity to produce strong physiological or chemical effects.
  • effector - noun an organ (a gland or muscle) that becomes active in response to nerve impulses;  a nerve fiber that terminates on a muscle or gland and stimulates contraction or secretion;  one who brings about a result or event; one who accomplishes a purpose.
  • effects - noun property of a personal character that is portable but not used in business.
  • efferent - adj. of nerves and nerve impulses; conveying information away from the CNS;  noun a nerve that conveys impulses toward or to muscles or glands.
  • efficacious - adj. marked by qualities giving the power to produce an intended effect;  producing or capable of producing an intended result or having a striking effect.
  • efficacy - noun capacity or power to produce a desired effect.
  • efficiency - noun skillfulness in avoiding wasted time and effort;  the ratio of the output to the input of any system.
  • efficient - adj. being effective without wasting time or effort or expense;  able to accomplish a purpose; functioning effectively.
  • efficiently - adv. in an efficient manner.
  • effort - noun use of physical or mental energy; hard work;  a notable achievement;  earnest and conscientious activity intended to do or accomplish something;  a series of actions advancing a principle or tending toward a particular end.
  • effortless - adj. requiring or apparently requiring no effort;  not showing effort or strain.
  • egg - noun animal reproductive body consisting of an ovum or embryo together with nutritive and protective envelopes; especially the thin-shelled reproductive body laid by e.g. female birds;  oval reproductive body of a fowl (especially a hen) used as food;  one of the two male reproductive glands that produce spermatozoa and secrete androgens;  verb coat with beaten egg;  throw eggs at.
  • eggs - noun oval reproductive body of a fowl (especially a hen) used as food.
  • eight - adj. being one more than seven;  noun the cardinal number that is the sum of seven and one;  a group of United States painters founded in 1907 and noted for their realistic depictions of sordid aspects of city life.
  • eighth - adj. coming next after the seventh and just before the ninth in position;  noun position eight in a countable series of things;  one part in eight equal parts.
  • eighty-five - adj. being five more than eighty.
  • either - adv. after a negative statement used as an intensive meaning something like `likewise' or `also'.
  • ejaculate - noun the thick white fluid containing spermatozoa that is ejaculated by the male genital tract;  verb eject semen;  utter impulsively.
  • ejaculation - noun an abrupt emphatic exclamation expressing emotion;  the discharge of semen in males.
  • eject - verb leave an aircraft rapidly, using an ejection seat or capsule;  eliminate (substances) from the body;  cause to come out in a squirt;  put out or expel from a place.
  • ejection - noun the act of forcing out someone or something;  the act of expelling or projecting or ejecting.
  • ekg - noun a graphical recording of the cardiac cycle produced by an electrocardiograph.
  • elaborate - adj. marked by complexity and richness of detail; developed or executed with care and in minute detail;  verb work out in detail;  add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing;  produce from basic elements or sources; change into a more developed product; make more complex, intricate, or richer.
  • elapsed - adj. (of time) having passed or slipped by.
  • elastase - noun a pancreatic enzyme that catalyzes the hydrolysis of elastin.
  • elastic - adj. capable of resuming original shape after stretching or compression; springy;  able to adjust readily to different conditions; noun a fabric made of yarns containing an elastic material;  a narrow band of elastic rubber used to hold things (such as papers) together.
  • elasticity - noun the tendency of a body to return to its original shape after it has been stretched or compressed.
  • elastin - noun a fibrous scleroprotein found in elastic tissues such as the walls of arteries.
  • elbow - noun the joint of a mammal or bird that corresponds to the human elbow;  the part of a sleeve that covers the elbow joint;  a sharp bend in a road or river;  a length of pipe with a sharp bend in it; hinge joint between the forearm and upper arm and the corresponding joint in the forelimb of a quadruped;  verb shove one's elbow into another person's ribs;  push one's way with the elbows.
  • elderly - adj. advanced in years; (`aged' is pronounced as two syllables);  noun people who are old collectively.
  • electric - adj. affected by emotion as if by electricity; thrilling;  (of a situation) exceptionally tense;  using or providing or producing or transmitting or operated by electricity;  noun a car that is powered by electricity.
  • electrical - adj. relating to or concerned with electricity;  using or providing or producing or transmitting or operated by electricity.
  • electrically - adv. by electricity.
  • electricity - noun keen and shared excitement;  a physical phenomenon associated with stationary or moving electrons and protons;  energy made available by the flow of electric charge through a conductor.
  • electrocardiogram - noun a graphical recording of the cardiac cycle produced by an electrocardiograph.
  • electrocardiograph - noun medical instrument that records electric currents associated with contractions of the heart.
  • electrochemical - adj. of or involving electrochemistry.
  • electrode - noun a conductor used to make electrical contact with some part of a circuit.
  • electroencephalogram - noun a graphical record of electrical activity of the brain; produced by an electroencephalograph.
  • electrolysis - noun removing superfluous or unwanted hair by passing an electric current through the hair root;  (chemistry) a chemical decomposition reaction produced by passing an electric current through a solution containing ions.
  • electrolyte - noun a solution that conducts electricity.
  • electromagnetic - adj. pertaining to or exhibiting magnetism produced by electric charge in motion.
  • electromyography - noun diagnosis of neuromuscular disorders with the use of an electromyograph.
  • electron - noun an elementary particle with negative charge.
  • electronegative - adj. having a negative electric charge.
  • electronic - adj. of or relating to electronics; concerned with or using devices that operate on principles governing the behavior of electrons;  of or concerned with electrons.
  • electronically - adv. by electronic means.
  • electronics - noun the branch of physics that deals with the emission and effects of electrons and with the use of electronic devices.
  • electroscope - noun measuring instrument that detects electric charge; two gold leaves diverge owing to repulsion of charges with like sign.
  • elegance - noun a refined quality of gracefulness and good taste;  a quality of neatness and ingenious simplicity in the solution of a problem (especially in science or mathematics).
  • elegant - adj. refined and tasteful in appearance or behavior or style;  displaying effortless beauty and simplicity in movement or execution;  suggesting taste, ease, and wealth.
  • element - noun the most favorable environment for a plant or animal;  a straight line that generates a cylinder or cone;  the situation in which you are happiest and most effective;  one of four substances thought in ancient and medieval cosmology to constitute the physical universe;  an artifact that is one of the individual parts of which a composite entity is made up; especially a part that can be separated from or attached to a system;  an abstract part of something;  any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter.
  • elemental - adj. relating to or being an element;  relating to severe atmospheric conditions;  of or being the essential or basic part.
  • elements - noun violent or severe weather (viewed as caused by the action of the four elements).
  • elevate - verb raise in rank or condition;  raise from a lower to a higher position;  give a promotion to or assign to a higher position.
  • elevated - adj. raised above the ground;  raised above ground level; on elevated rails;  noun a railway that is powered by electricity and that runs on a track that is raised above the street level.
  • elevation - noun drawing of an exterior of a structure;  (ballet) the height of a dancer's leap or jump;  distance of something above a reference point (such as sea level);  the event of something being raised upward;  angular distance above the horizon (especially of a celestial object);  the act of increasing the wealth or prestige or power or scope of something;  a raised or elevated geological formation;  the highest level or degree attainable; the highest stage of development.
  • elevator - noun lifting device consisting of a platform or cage that is raised and lowered mechanically in a vertical shaft in order to move people from one floor to another in a building;  the airfoil on the tailplane of an aircraft that makes it ascend or descend.
  • eleven - adj. being one more than ten;  noun the cardinal number that is the sum of ten and one;  a team that plays football.
  • eleventh - adj. coming next after the tenth and just before the twelfth in position;  noun position 11 in a countable series of things.
  • elf - noun (folklore) fairies that are somewhat mischievous;  below 3 kilohertz.
  • elicit - verb derive by reason;  deduce (a principle) or construe (a meaning);  call forth (emotions, feelings, and responses).
  • elicitation - noun stimulation that calls up (draws forth) a particular class of behaviors.
  • elicited - adj. called forth from a latent or potential state by stimulation.
  • eliminate - verb kill in large numbers;  terminate or take out;  remove (an unknown variable) from two or more equations;  remove from a contest or race;  eliminate from the body;  dismiss from consideration or a contest;  do away with.
  • elimination - noun the murder of a competitor;  the act of removing or getting rid of something;  the act of removing an unknown mathematical quantity by combining equations;  analysis of a problem into alternative possibilities followed by the systematic rejection of unacceptable alternatives;  the bodily process of discharging waste matter.
  • elite - adj. selected as the best;  noun a group or class of persons enjoying superior intellectual or social or economic status.
  • elizabeth - noun Queen of England from 1558 to 1603; daughter of Henry VIII and Anne Boleyn; she succeeded Mary I (who was a Catholic) and restored Protestantism to England; during her reign Mary Queen of Scots was executed and the Spanish Armada was defeated; her reign was marked by prosperity and literary genius (1533-1603);  daughter of George VI who became the Queen of England and Northern Ireland in 1952 on the death of her father (1926-).
  • ellipsoid - adj. in the form of an ellipse;  noun a surface whose plane sections are all ellipses or circles.
  • elliptical - adj. characterized by extreme economy of expression or omission of superfluous elements;  rounded like an egg.
  • elongate - adj. having notably more length than width; being long and slender;  of a leaf shape; long and narrow;  verb make long or longer by pulling and stretching.
  • elongated - adj. drawn out or made longer spatially;  having notably more length than width; being long and slender.
  • elongation - noun the act of lengthening something;  an addition to the length of something;  the quality of being elongated.
  • else - adj. other than what is under consideration or implied;  adv.(usually used with `or') if not, then;  additional to or different from this one or place or time or manner.
  • elsewhere - adv. in or to another place.
  • elusive - adj. skillful at eluding capture;  difficult to describe;  be difficult to detect or grasp by the mind.
  • em - noun a linear unit (1/6 inch) used in printing;  the square of a body of any size of type.
  • embarrassing - adj. causing to feel shame or chagrin or vexation; hard to deal with; especially causing pain or embarrassment.
  • embedded - adj. inserted as an integral part of a surrounding whole; enclosed firmly in a surrounding mass.
  • embellish - verb make more beautiful;  add details to;  make more attractive by adding ornament, colour, etc.;  be beautiful to look at.
  • embolism - noun occlusion of a blood vessel by an embolus (a loose clot or air bubble or other particle);  an insertion into a calendar.
  • embolus - noun an abnormal particle (e.g. an air bubble or part of a clot) circulating in the blood.
  • embrace - noun a close affectionate and protective acceptance;  the act of clasping another person in the arms (as in greeting or affection);  the state of taking in or encircling;  verb squeeze (someone) tightly in your arms, usually with fondness;  include in scope; include as part of something broader; have as one's sphere or territory;  take up the cause, ideology, practice, method, of someone and use it as one's own.
  • embryo - noun an animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval life;  (botany) a minute rudimentary plant contained within a seed or an archegonium.
  • embryologic - adj. of an organism prior to birth or hatching.
  • embryonic - adj. in an early stage of development;  of an organism prior to birth or hatching.
  • emerge - verb come out into view, as from concealment;  become known or apparent;  come up to the surface of or rise;  come out of; happen or occur as a result of something.
  • emergence - noun the act of emerging;  the becoming visible;  the gradual beginning or coming forth;  the act of coming (or going) out; becoming apparent.
  • emergency - noun a sudden unforeseen crisis (usually involving danger) that requires immediate action;  a state in which martial law applies;  a brake operated by hand; usually operates by mechanical linkage.
  • emerging - adj. coming to maturity;  coming into view;  coming into existence.
  • emerson - noun United States writer and leading exponent of transcendentalism (1803-1882).
  • emery - noun a hard grey-black mineral consisting of corundum and either hematite or magnetite; used as an abrasive (especially as a coating on paper).
  • emesis - noun the reflex act of ejecting the contents of the stomach through the mouth.
  • emigration - noun migration from a place (especially migration from your native country in order to settle in another).
  • eminence - noun high status importance owing to marked superiority;  a protuberance on a bone especially for attachment of a muscle or ligament.
  • emission - noun the act of emitting; causing to flow forth;  the occurrence of a flow of water (as from a pipe);  the release of electrons from parent atoms;  any of several bodily processes by which substances go out of the body;  a substance that is emitted or released.
  • emit - verb expel (gases or odors);  give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.;  express audibly; utter sounds (not necessarily words).
  • emotion - noun any strong feeling.
  • emotional - adj. of more than usual emotion;  determined or actuated by emotion rather than reason;  of or pertaining to emotion; (of persons) excessively affected by emotion;  extravagantly demonstrative.
  • emphasis - noun special and significant stress by means of position or repetition e.g.;  special importance or significance;  intensity or forcefulness of expression;  the relative prominence of a syllable or musical note (especially with regard to stress or pitch).
  • emphasize - verb to stress, single out as important;  give extra weight to (a communication).
  • emphasizing - noun the act of giving special importance or significance to something.
  • emphysema - noun an abnormal condition of the lungs marked by decreased respiratory function; associated with smoking or chronic bronchitis or old age.
  • empire - noun an eating apple that somewhat resembles a McIntosh; used as both an eating and a cooking apple;  a group of countries under a single authority;  a monarchy with an emperor as head of state;  the domain ruled by an emperor or empress; the region over which imperial dominion is exercised;  a group of diverse companies under common ownership and run as a single organization.
  • employ - noun the state of being employed or having a job;  verb put into service; make work or employ (something) for a particular purpose or for its inherent or natural purpose;  engage or hire for work.
  • employed - adj. having your services engaged for; or having a job especially one that pays wages or a salary;  put to use.
  • employment - noun the occupation for which you are paid;  the act of giving someone a job;  the state of being employed or having a job;  the act of using.
  • empty - adj. holding or containing nothing;  emptied of emotion; needing nourishment;  devoid of significance or point;  having nothing inside;  noun a container that has been emptied;  verb become empty or void of its content;  make void or empty of contents;  remove; excrete or discharge from the body;  leave behind empty; move out of.
  • emptying - noun the act of removing the contents of something.
  • emulsified - adj. (of immiscible or not completely miscible liquids) blended by the suspending of small globules of one liquid (as oil) in another (as water or vinegar).
  • emulsify - verb form into or become an emulsion;  cause to become an emulsion; make into an emulsion.
  • emulsion - noun a light-sensitive coating on paper or film; consists of fine grains of silver bromide suspended in a gelatin;  (chemistry) a colloid in which both phases are liquids.
  • en - noun half the width of an em.
  • enable - verb render capable or able for some task.
  • enabling - adj. providing legal power or sanction.
  • enamel - noun any smooth glossy coating that resembles ceramic glaze;  a paint that dries to a hard glossy finish;  hard white substance covering the crown of a tooth;  a colored glassy compound (opaque or partially opaque) that is fused to the surface of metal or glass or pottery for decoration or protection;  verb coat, inlay, or surface with enamel.
  • encapsulate - verb put in a short or concise form; reduce in volume; enclose in a capsule or other small container.
  • encased - adj. covered or protected with or as if with a case.
  • encircle - verb form a circle around;  bind with something round or circular;  be around.
  • encircled - adj. adorned or crowned with a circlet; sometimes used as combining forms;  enclosed within a circle;  confined on all sides.
  • enclose - verb surround completely;  close in or confine;  introduce; enclose or enfold completely with or as if with a covering.
  • enclosed - adj. closed in or surrounded or included within.
  • enclosing - noun the act of enclosing something inside something else.
  • enclosure - noun the act of enclosing something inside something else;  artifact consisting of a space that has been enclosed for some purpose;  something (usually a supporting document) that is enclosed in an envelope with a covering letter;  a naturally enclosed space.
  • encode - verb convert ordinary language into code.
  • encoding - noun the activity of converting from plain text into code.
  • encounter - noun a casual meeting with a person of thing;  a minor short-term fight;  a hostile disagreement face-to-face;  a casual or unexpected convergence;  verb contend against an opponent in a sport, game, or battle;  come together;  come upon, as if by accident; meet with;  be beset by;  experience as a reaction.
  • encourage - verb spur on;  inspire with confidence; give hope or courage to;  contribute to the progress or growth of.
  • encouraged - adj. inspired with confidence.
  • encouraging - adj. giving courage or confidence or hope;  furnishing support and encouragement.
  • end - noun a position on the line of scrimmage;  the part you are expected to play;  a piece of cloth that is left over after the rest has been used or sold;  a final part or section;  the concluding parts of an event or occurrence;  a boundary marking the extremities of something;  either extremity of something that has length;  the surface at either extremity of a three-dimensional object;  one of two places from which people are communicating to each other; (football) the person who plays at one end of the line of scrimmage; a final state;  the point in time at which something ends;  the state of affairs that a plan is intended to achieve and that (when achieved) terminates behavior intended to achieve it;  the last section of a communication;  verb bring to an end or halt;  put an end to;  have an end, in a temporal, spatial, or quantitative sense; either spatial or metaphorical;  be the end of; be the last or concluding part of.
  • end-plate - noun the flattened end of a motor neuron that transmits neural impulses to a muscle.
  • endarterectomy - noun surgical removal of the inner lining of an artery that is clogged with atherosclerosis.
  • endeavor - noun earnest and conscientious activity intended to do or accomplish something;  a purposeful or industrious undertaking (especially one that requires effort or boldness);  verb attempt by employing effort.
  • ended - adj. having come or been brought to a conclusion.
  • ending - noun the end of a word (a suffix or inflectional ending or final morpheme);  event whose occurrence ends something;  the act of ending something;  the last section of a communication;  the point in time at which something ends.
  • endless - adj. having the ends united so as to form a continuous whole;  infinitely great in number;  tiresomely long; seemingly without end;  occurring so frequently as to seem ceaseless or uninterrupted; having no known beginning and presumably no end.
  • endocardium - noun the membrane that lines the cavities of the heart and forms part of the heart valves.
  • endocrine - adj. of or belonging to endocrine glands or their secretions;  noun any of the glands of the endocrine system that secrete hormones directly into the bloodstream;  the secretion of an endocrine gland that is transmitted by the blood to the tissue on which it has a specific effect.
  • endocrinologist - noun physician who specializes in the diagnosis and treatment of conditions affecting the endocrine system.
  • endocrinology - noun the branch of medicine dealing with the endocrine glands and their secretions.
  • endoderm - noun the inner germ layer that develops into the lining of the digestive and respiratory systems.
  • endogenous - adj. derived or originating internally;  of or resembling an endogen.
  • endometrial - adj. of or relating to the endometrium.
  • endometriosis - noun the presence of endometrium elsewhere than in the lining of the uterus; causes premenstrual pain and dysmenorrhea.
  • endometrium - noun (pregnancy) the mucous membrane that lines the uterus; thickens under hormonal control and (if pregnancy does not occur) is shed in menstruation; if pregnancy occurs it is shed along with the placenta at parturition.
  • endoneurium - noun delicate connective tissue around individual nerve fibers in nerve.
  • endorphin - noun a neurochemical occurring naturally in the brain and having analgesic properties.
  • endosteum - noun vascular membrane that lines the inner surface of long bones.
  • endothelial - adj. of or relating to or located in the endothelium.
  • endothelium - noun an epithelium of mesoblastic origin; a thin layer of flattened cells that lines the inside of some body cavities.
  • endowed - adj. provided or supplied or equipped with (especially as by inheritance or nature).
  • endurance - noun the power to withstand hardship or stress;  a state of surviving; remaining alive.
  • enemy - noun any hostile group of people;  an opposing military force;  an armed adversary (especially a member of an opposing military force);  a personal enemy.
  • energy - noun an imaginative lively style (especially style of writing); enterprising or ambitious drive;  forceful exertion;  (physics) the capacity of a physical system to do work; the units of energy are joules or ergs;  a healthy capacity for vigorous activity;  the federal department responsible for maintaining a national energy policy of the United States; created in 1977.
  • energy-releasing - adj. of or relating to catabolism;  (of a nuclear reaction) occurring with evolution or releasing of energy.
  • enervate - verb weaken mentally or morally;  disturb the composure of.
  • enervating - adj. causing debilitation.
  • enervation - noun lack of vitality;  serious weakening and loss of energy.
  • enforced - adj. forced or compelled or put in force.
  • engage - verb get caught;  keep engaged;  hire for work or assistance;  carry on (wars, battles, or campaigns);  ask to represent; of legal counsel;  engage or engross wholly;  give to in marriage; engage for service under a term of contract;  carry out or participate in an activity; be involved in;  engage or hire for work.
  • engaged - adj. having ones attention or mind or energy engaged; built against or attached to a wall;  having services contracted for; (used of toothed parts or gears) interlocked and interacting;  involved in military hostilities;  pledged to be married;  (of facilities such as telephones or lavatories) unavailable for use by anyone else or indicating unavailability; (`engaged' is a British term for a busy telephone line);  reserved in advance.
  • engagement - noun employment for performers or performing groups that lasts for a limited period of time;  the act of sharing in the activities of a group;  contact by fitting together;  a hostile meeting of opposing military forces in the course of a war;  the act of giving someone a job;  a mutual promise to marry;  a meeting arranged in advance.
  • engaging - adj. attracting or delighting.
  • engine - noun motor that converts thermal energy to mechanical work;  something used to achieve a purpose;  a wheeled vehicle consisting of a self-propelled engine that is used to draw trains along railway tracks.
  • engineering - noun a room (as on a ship) in which the engine is located;  the discipline dealing with the art or science of applying scientific knowledge to practical problems;  the practical application of science to commerce or industry.
  • english - adj. of or relating to or characteristic of England or its culture or people;  of or relating to the English language;  noun the discipline that studies the English language and literature;  an Indo-European language belonging to the West Germanic branch; the official language of Britain and the United States and most of the commonwealth countries;  (sports) the spin given to a ball by striking it on one side or releasing it with a sharp twist;  the people of England.
  • engorgement - noun eating ravenously or voraciously to satiation; congestion with blood.
  • engulf - verb flow over or cover completely;  engross (oneself) fully.
  • enhance - verb increase;  make better or more attractive.
  • enhanced - adj. increased or intensified in value or beauty or quality.
  • enhancement - noun an improvement that makes something more agreeable.
  • enjoy - verb have benefit from;  derive or receive pleasure from; get enjoyment from; take pleasure in;  have for one's benefit;  take delight in;  get pleasure from.
  • enjoyment - noun act of receiving pleasure from something;  the pleasure felt when having a good time;  (law) the exercise of the legal right to enjoy the benefits of owning property.
  • enlarge - verb make larger;  become larger or bigger;  make large; add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing.
  • enlarged - adj. expanded in scope;  larger than normal;  (of an organ or body part) excessively enlarged as a result of increased size in the constituent cells;  enlarged to an abnormal degree;  as of a photograph; made larger.
  • enlargement - noun a photographic print that has been enlarged; the state of being enlarged;  the act of increasing (something) in size or volume or quantity or scope;  a discussion that provides additional information.
  • enormous - adj. extraordinarily large in size or extent or amount or power or degree.
  • enormously - adv. extremely.
  • enough - adj. enough to meet a purpose;  adv. as much as necessary;  noun an adequate quantity; a quantity that is large enough to achieve a purpose.
  • enrich - verb make better or improve in quality;  make wealthy or richer.
  • ensue - verb issue or terminate (in a specified way, state, etc.); end.
  • ensure - verb be careful or certain to do something; make certain of something;  make certain of.
  • entail - noun the act of entailing property; the creation of a fee tail from a fee simple;  land received by fee tail;  verb impose, involve, or imply as a necessary accompaniment or result;  have as a logical consequence;  limit the inheritance of property to a specific class of heirs.
  • enter - verb become a participant; be involved in;  come on stage;  to come or go into;  set out on (an enterprise or subject of study);  make a record of; set down in permanent form;  put or introduce into something;  take on duties or office;  register formally as a participant or member;  be or play a part of or in.
  • enteric - adj. of or relating to the enteron;  of or relating to or inside the intestines.
  • entering - noun the act of entering;  a movement into or inward.
  • enterokinase - noun enzyme in the intestinal juice that converts inactive trypsinogen into active trypsin.
  • entertainment - noun an activity that is diverting and that holds the attention.
  • entire - adj. constituting the full quantity or extent; complete;  (used of domestic animals) sexually competent;  (of leaves or petals) having a smooth edge; not broken up into teeth or lobes;  constituting the undiminished entirety; lacking nothing essential especially not damaged;  noun uncastrated adult male horse.
  • entirely - adv. without any others being included or involved;  to a complete degree or to the full or entire extent (`whole' is often used informally for `wholly').
  • entrance - noun the act of entering;  something that provides access (to get in or get out);  a movement into or inward;  verb put into a trance;  attract; cause to be enamored.
  • entrenched - adj. established firmly and securely;  dug in.
  • entry - noun an item inserted in a written record;  a written record of a commercial transaction;  the act of entering;  the act of beginning something new;  something that provides access (to get in or get out);  something (manuscripts or architectural plans and models or estimates or works of art of all genres etc.) submitted for the judgment of others (as in a competition).
  • envelop - verb enclose or enfold completely with or as if with a covering.
  • envelope - noun any wrapper or covering;  a flat rectangular paper container for papers;  the bag containing the gas in a balloon;  the maximum operating capability of a system;  a natural covering (as by a fluid);  a curve that is tangent to each of a family of curves.
  • enveloped - adj. completely enclosed or swallowed up.
  • enveloping - adj. surrounding and closing in on or hemming in.
  • environment - noun the area in which something exists or lives;  the totality of surrounding conditions.
  • environmental - adj. concerned with the ecological effects of altering the environment;  of or relating to the external conditions or surroundings.
  • envision - verb picture to oneself; imagine possible;  imagine; conceive of; see in one's mind.
  • envisioned - adj. seen in the mind as a mental image.
  • enzymatic - adj. of or relating to or produced by an enzyme.
  • enzyme - noun any of several complex proteins that are produced by cells and act as catalysts in specific biochemical reactions.
  • eosin - noun a red fluorescent dye resulting from the action of bromine on fluorescein; used in cosmetics and as a biological stain for studying cell structures.
  • eosinophil - noun a leukocyte readily stained with eosin.
  • epi - noun a self-report personality inventory based on Hans Eysenck's factor analysis of personality which assumes three basic factors (the two most important being extraversion to introversion and neuroticism).
  • epicardium - noun the innermost of the two layers of the pericardium.
  • epicondyle - noun a projection on a bone above a condyle serving for the attachment of muscles and ligaments.
  • epidemic - adj. (especially of medicine) of disease or anything resembling a disease; attacking or affecting many individuals in a community or a population simultaneously;  noun a widespread outbreak of an infectious disease; many people are infected at the same time.
  • epidermal - adj. of or relating to a cuticle or cuticula.
  • epidermis - noun the outer layer of the skin covering the exterior body surface of vertebrates.
  • epididymis - noun a convoluted tubule in each testis; carries sperm to vas deferens.
  • epiglottis - noun a flap of cartilage that covers the windpipe while swallowing.
  • epilepsy - noun a disorder of the central nervous system characterized by loss of consciousness and convulsions.
  • epinephrine - noun a catecholamine secreted by the adrenal medulla in response to stress (trade name Adrenalin); stimulates autonomic nerve action.
  • epiphyseal - adj. relating to the epiphysis of a bone.
  • epiphysis - noun the end of a long bone; initially separated from the main bone by a layer of cartilage that eventually ossifies so the parts become fused;  a small endocrine gland in the brain; situated beneath the back part of the corpus callosum; secretes melatonin.
  • episiotomy - noun surgical incision of the perineum to enlarge the vagina and so facilitate delivery during childbirth.
  • episode - noun a brief section of a literary or dramatic work that forms part of a connected series;  a part of a broadcast serial;  a happening that is distinctive in a series of related events;  film consisting of a succession of related shots that develop a given subject in a movie.
  • episodic - adj. limited in duration to a single episode;  occurring or appearing at usually irregular intervals;  of writing or narration; divided into or composed of episodes.
  • epithelial - adj. of or belonging to the epithelium.
  • epithelium - noun membranous tissue covering internal organs and other internal surfaces of the body.
  • epithet - noun descriptive word or phrase;  a defamatory or abusive word or phrase.
  • epitope - noun the site on the surface of an antigen molecule to which an antibody attaches itself.
  • eponymous - adj. being or relating to or bearing the name of an eponym.
  • epoxy - noun a thermosetting resin; used chiefly in strong adhesives and coatings and laminates;  verb glue with epoxy.
  • equal - adj. well matched; having the same quantity, value, or measure as another;  equal in amount or value;  noun a person who is of equal standing with another in a group;  verb make equal, uniform, corresponding, or matching;  be identical or equivalent to; be equal to in quality or ability.
  • equalization - noun the act of making equal or uniform.
  • equalize - verb compensate; make the score equal;  make equal, uniform, corresponding, or matching.
  • equally - adv. to the same degree (often followed by `as');  in equal amounts or shares; in a balanced or impartial way.
  • equation - noun the act of regarding as equal;  a mathematical statement that two expressions are equal;  a state of being essentially equal or equivalent; equally balanced.
  • equilibrate - verb bring to a chemical stasis or equilibrium;  bring into balance or equilibrium.
  • equilibrium - noun a sensory system located in structures of the inner ear that registers the orientation of the head;  a stable situation in which forces cancel one another;  a chemical reaction and its reverse proceed at equal rates;  equality of distribution.
  • equipment - noun an instrumentality needed for an undertaking or to perform a service.
  • equipped - adj. carrying weapons;  provided or fitted out with what is necessary or useful or appropriate;  prepared with proper equipment; provided with whatever is necessary for a purpose (as furniture or equipment or authority).
  • equitably - adv. in an equitable manner.
  • equivalent - adj. being essentially equal to something;  equal in amount or value;  noun the atomic weight of an element that has the same combining capacity as a given weight of another element; the standard is 8 for oxygen;  a person or thing equal to another in value or measure or force or effect or significance etc.
  • er - noun a room in a hospital or clinic staffed and equipped to provide emergency care to persons requiring immediate medical treatment;  a trivalent metallic element of the rare earth group; occurs with yttrium.
  • eradicate - verb kill in large numbers;  destroy completely, as if down to the roots.
  • eradication - noun the complete destruction of every trace of something.
  • erect - adj. upright in position or posture;  of sexual organs; stiff and rigid;  verb construct, build, or erect;  cause to rise up.
  • erectile - adj. filled with vascular sinuses and capable of becoming distended and rigid as the result of being filled with blood;  capable of being raised to an upright position.
  • erection - noun a structure that has been erected;  an erect penis; the act of building or putting up.
  • ergo - adv. (used as a sentenced connector) therefore or consequently.
  • ergonomics - noun the branch of engineering science in which biological science is used to study the relation between workers and their environments.
  • erosion - noun (geology) the mechanical process of wearing or grinding something down (as by particles washing over it);  a gradual decline of something;  condition in which the earth's surface is worn away by the action of water and wind;  erosion by chemical action.
  • erratically - adv. in an erratic unpredictable manner.
  • error - noun (baseball) a failure of a defensive player to make an out when normal play would have sufficed;  departure from what is ethically acceptable;  a misconception resulting from incorrect information;  part of a statement that is not correct;  (computer science) the occurrence of an incorrect result produced by a computer;  a wrong action attributable to bad judgment or ignorance or inattention;  inadvertent incorrectness.
  • erupt - verb become active and spew forth lava and rocks;  erupt or intensify suddenly;  become raw or open;  start abruptly;  appear on the skin;  break out;  start to burn or burst into flames;  force out or release suddenly and often violently something pent up.
  • eruption - noun the emergence of a tooth as it breaks through the gum;  (of volcanos) pouring out fumes of lava (or a deposit so formed);  symptom consisting of a breaking out and becoming visible;  a sudden very loud noise;  a sudden violent spontaneous occurrence (usually of some undesirable condition);  the sudden occurrence of a violent discharge of steam and volcanic material.
  • erythroblast - noun a nucleated cell in bone marrow from which red blood cells develop.
  • erythroblastosis - noun a blood disease characterized by the abnormal presence of erythroblasts in the blood.
  • erythrocyte - noun a mature blood cell that contains hemoglobin to carry oxygen to the bodily tissues; a biconcave disc that has no nucleus.
  • erythropoiesis - noun the process of producing red blood cells by the stem cells in the bone marrow.
  • erythropoietin - noun a glycoprotein secreted by the kidneys that stimulates the production of red blood cells.
  • escalator - noun a stairway whose steps move continuously on a circulating belt;  a clause in a contract that provides for an increase or a decrease in wages or prices or benefits etc. depending on certain conditions (as a change in the cost of living index).
  • escape - noun the act of escaping physically;  a means or way of escaping;  an avoidance of danger or difficulty;  an inclination to retreat from unpleasant realities through diversion or fantasy;  the unwanted discharge of a fluid from some container;  a plant originally cultivated but now growing wild;  nonperformance of something distasteful (as by deceit or trickery) that you are supposed to do;  a valve in a container in which pressure can build up (as a steam boiler); it opens automatically when the pressure reaches a dangerous level;  verb issue or leak, as from a small opening;  run away from confinement;  remove oneself from a familiar environment, usually for pleasure or diversion;  fail to experience; escape potentially unpleasant consequences; get away with a forbidden action;  flee; take to one's heels; cut and run;  be incomprehensible to; escape understanding by.
  • esophageal - adj. relating to the esophagus.
  • esophagus - noun the passage between the pharynx and the stomach.
  • especially - adv. to a distinctly greater extent or degree than is common;  in a special manner.
  • essence - noun any substance possessing to a high degree the predominant properties of a plant or drug or other natural product from which it is extracted;  a toiletry that emits and diffuses a fragrant odor;  the choicest or most essential or most vital part of some idea or experience;  the central meaning or theme of a speech or literary work.
  • essential - adj. basic and fundamental;  absolutely required and not to be used up or sacrificed;  absolutely necessary; vitally necessary; being or relating to or containing the essence of a plant etc;  defining rights and duties as opposed to giving the rules by which rights and duties are established;  of the greatest importance;  noun anything indispensable.
  • essentially - adv. at bottom or by one's (or its) very nature.
  • establish - verb use as a basis for; found on;  set up or lay the groundwork for;  bring about;  set up or found;  establish the validity of something, as by an example, explanation or experiment;  institute, enact, or establish;  place;  build or establish something abstract.
  • established - adj. introduced from another region and persisting without cultivation;  brought about or set up or accepted; especially long established;  shown to be valid beyond a reasonable doubt; securely established;  conforming with accepted standards;  settled securely and unconditionally.
  • establishment - noun a public or private structure (business or governmental or educational) including buildings and equipment for business or residence;  the cognitive process of establishing a valid proof;  any large organization;  (ecology) the process by which a plant or animal becomes established in a new habitat;  the act of forming something;  an organization founded and united for a specific purpose;  the persons (or committees or departments etc.) who make up a body for the purpose of administering something.
  • estimate - noun a judgment of the qualities of something or somebody;  an approximate calculation of quantity or degree or worth;  the respect with which a person is held;  a statement indicating the likely cost of some job;  a document appraising the value of something (as for insurance or taxation);  verb judge tentatively or form an estimate of (quantities or time);  judge to be probable.
  • estimation - noun a judgment of the qualities of something or somebody;  an approximate calculation of quantity or degree or worth;  the respect with which a person is held;  a document appraising the value of something (as for insurance or taxation).
  • estradiol - noun the most powerful female hormone that occurs naturally; synthesized and used to treat estrogen deficiency and breast cancer.
  • estriol - noun a naturally occurring estrogenic hormone; a synthetic form is used to treat estrogen deficiency.
  • estrogen - noun a general term for female steroid sex hormones that are secreted by the ovary and responsible for typical female sexual characteristics.
  • estrone - noun a naturally occurring weak estrogenic hormone secreted by the mammalian ovary; synthesized (trade name Estronol) and used to treat estrogen deficiency.
  • eta - noun the 7th letter of the Greek alphabet;  a terrorist organization organized in 1959 by student activists who were dissatisfied with the moderate nationalism of the traditional Basque party; want to create on independent homeland in Spain's western Pyrenees.
  • ethanol - noun the intoxicating agent in fermented and distilled liquors; used pure or denatured as a solvent or in medicines and colognes and cleaning solutions and rocket fuel; proposed as a renewable clean-burning additive to gasoline.
  • ethical - adj. conforming to accepted standards of social or professional behavior;  adhering to ethical and moral principles;  of or relating to the philosophical study of ethics.
  • ethmoid - noun one of the eight bones of the cranium; a small bone filled with air spaces that forms part of the eye sockets and the nasal cavity.
  • ethnic - adj. not acknowledging the God of Christianity and Judaism and Islam;  denoting or deriving from or distinctive of the ways of living built up by a group of people;  noun a person who is a member of an ethnic group.
  • ethnicity - noun an ethnic quality or affiliation resulting from racial or cultural ties.
  • ethylene - noun a flammable colorless gaseous alkene; obtained from petroleum and natural gas and used in manufacturing many other chemicals; sometimes used as an anesthetic.
  • etiology - noun the philosophical study of causation;  the cause of a disease.
  • etymology - noun the study of the sources and development of words;  a history of a word.
  • eukaryotic - adj. having cells with `good' or membrane-bound nuclei.
  • eupnea - noun normal relaxed breathing.
  • european - adj. of or relating to or characteristic of Europe or the people of Europe;  noun a native or inhabitant of Europe.
  • eutrophication - noun excessive nutrients in a lake or other body of water, usually caused by runoff of nutrients (animal waste, fertilizers, sewage) from the land, which causes a dense growth of plant life; the decomposition of the plants depletes the supply of oxygen, leading to the death of animal life.
  • evade - verb use cunning or deceit to escape or avoid;  practice evasion;  avoid or try to avoid fulfilling, answering, or performing (duties, questions, or issues);  escape, either physically or mentally.
  • evaluate - verb form a critical opinion of;  place a value on; judge the worth of something.
  • evaporate - verb lose or cause to lose liquid by vaporization leaving a more concentrated residue;  change into a vapor;  cause to change into a vapor.
  • evaporation - noun the process of extracting moisture;  the process of becoming a vapor.
  • evasion - noun the act of physically escaping from something (an opponent or a pursuer or an unpleasant situation) by some adroit maneuver;  nonperformance of something distasteful (as by deceit or trickery) that you are supposed to do;  the deliberate act of failing to pay money;  a statement that is not literally false but that cleverly avoids an unpleasant truth.
  • evasive - adj. deliberately vague or ambiguous;  avoiding or escaping from difficulty or danger especially enemy fire;  skillful at eluding capture.
  • eve - noun (Old Testament) Adam's wife in Judeo-Christian mythology: the first woman and mother of the human race; God created Eve from Adam's rib and placed Adam and Eve in the Garden of Eden;  the day before;  the period immediately before something;  the latter part of the day (the period of decreasing daylight from late afternoon until nightfall).
  • even - adj. equal in degree or extent or amount; or equally matched or balanced;  being level or straight or regular and without variation as e.g. in shape or texture; or being in the same plane or at the same height as something else (i.e. even with);  divisible by two; occurring at fixed intervals;  symmetrically arranged;  of the score in a contest;  adv. used as an intensive especially to indicate something unexpected;  to a greater degree or extent; used with comparisons; in spite of; notwithstanding;  to the full extent;  noun the latter part of the day (the period of decreasing daylight from late afternoon until nightfall);  verb make even or more even;  become even or more even;  make level or straight.
  • evening - noun the latter part of the day (the period of decreasing daylight from late afternoon until nightfall);  the early part of night (from dinner until bedtime) spent in a special way;  a later concluding time period.
  • evenly - adv. in a level and regular way;  in equal amounts or shares; in a balanced or impartial way.
  • event - noun something that happens at a given place and time;  a phenomenon located at a single point in space-time; the fundamental observational entity in relativity theory;  a special set of circumstances;  a phenomenon that follows and is caused by some previous phenomenon.
  • eventual - adj. expected to follow in the indefinite future from causes already operating.
  • eventually - adv. within an indefinite time or at an unspecified future time;  after a long period of time or an especially long delay.
  • ever - adv. at any time;  (intensifier for adjectives) very;  at all times; all the time and on every occasion.
  • everest - noun a mountain in the central Himalayas on the border of Tibet and Nepal; the highest mountain peak in the world (29,028 feet high).
  • eversion - noun the position of being turned outward;  the act of turning inside out.
  • evert - noun United States tennis player who won women's singles titles in the United States and at Wimbledon (born in 1954);  verbturn inside out; turn the inner surface of outward.
  • every - adj. (used of count nouns) each and all of the members of a group considered singly and without exception;  each and all of a series of entities or intervals as specified.
  • everyday - adj. commonplace and ordinary;  found in the ordinary course of events;  suited for everyday use.
  • everywhere - adv. to or in any or all places.
  • evidence - noun your basis for belief or disbelief; knowledge on which to base belief;  an indication that makes something evident; (law) all the means by which any alleged matter of fact whose truth is investigated at judicial trial is established or disproved;  verbprovide evidence for; stand as proof of; show by one's behavior, attitude, or external attributes;  give evidence;  provide evidence for.
  • evidenced - adj. supported by evidence.
  • evident - adj. capable of being seen or noticed;  clearly revealed to the mind or the senses or judgment.
  • evidently - adv. unmistakably (`plain' is often used informally for `plainly').
  • evoke - verb call to mind;  summon into action or bring into existence, often as if by magic;  deduce (a principle) or construe (a meaning);  evoke or provoke to appear or occur;  call forth (emotions, feelings, and responses).
  • evolution - noun (biology) the sequence of events involved in the evolutionary development of a species or taxonomic group of organisms;  a process in which something passes by degrees to a different stage (especially a more advanced or mature stage).
  • evolutionary - adj. of or relating to or produced by evolution.
  • exact - adj. marked by strict and particular and complete accordance with fact;  (of ideas, images, representations, expressions) characterized by perfect conformity to fact or truth ; strictly correct;  verb take as an undesirable consequence of some event or state of affairs;  claim as due or just.
  • exactly - adv. indicating exactness or preciseness;  in a precise manner;  just as it should be.
  • exaggerated - adj. enlarged beyond truth or reasonableness; enlarged to an abnormal degree;  represented as greater than is true or reasonable.
  • exam - noun a set of questions or exercises evaluating skill or knowledge.
  • examination - noun the act of examining something closely (as for mistakes);  the act of giving students or candidates a test (as by questions) to determine what they know or have learned;  a set of questions or exercises evaluating skill or knowledge;  a detailed inspection of your conscience (as done daily by Jesuits);  formal systematic questioning.
  • examine - verb question closely;  observe, check out, and look over carefully or inspect;  consider in detail and subject to an analysis in order to discover essential features or meaning;  question or examine thoroughly and closely;  put to the test, as for its quality, or give experimental use to.
  • examiner - noun an investigator who observes carefully;  someone who administers a test to determine your qualifications.
  • example - noun an item of information that is representative of a type;  punishment intended as a warning to others;  a task performed or problem solved in order to develop skill or understanding; something to be imitated;  a representative form or pattern;  an occurrence of something.
  • excavation - noun the act of digging;  a hole in the ground made by excavating;  the act of extracting ores or coal etc from the earth;  the site of an archeological exploration.
  • exceed - verb go beyond;  go beyond;  be or do something to a greater degree.
  • exceedingly - adv. to an extreme degree or extent.
  • excellent - adj. of the highest quality.
  • except - verb prevent from being included or considered or accepted;  take exception to.
  • exception - noun a deliberate act of omission;  an instance that does not conform to a rule or generalization;  grounds for adverse criticism.
  • exceptional - adj. deviating widely from a norm of physical or mental ability; used especially of children below normal in intelligence;  surpassing what is common or usual or expected;  far beyond what is usual in magnitude or degree.
  • exceptionally - adv. to an exceptional degree.
  • excess - adj. more than is needed, desired, or required;  nounimmoderation as a consequence of going beyond sufficient or permitted limits;  a quantity much larger than is needed;  excessive indulgence;  the state of being more than full.
  • excessive - adj. beyond normal limits;  unrestrained, especially with regard to feelings.
  • excessively - adv. to an excessive degree.
  • exchange - noun (chess) the capture by both players (usually on consecutive moves) of pieces of equal value;  (chess) gaining (or losing) a rook in return for a knight or bishop;  reciprocal transfer of equivalent sums of money especially the currencies of different countries;  the act of giving something in return for something received;  the act of changing one thing for another thing;  a workplace for buying and selling; open only to members;  a mutual expression of views (especially an unpleasant one);  chemical process in which one atom or ion or group changes places with another;  the act of putting one thing or person in the place of another: "he sent Smith in for Jones but the substitution came too late to help";  (sports) an unbroken sequence of several successive strokes;  a workplace that serves as a telecommunications facility where lines from telephones can be connected together to permit communication;  verb give to, and receive from, one another;  hand over one and receive another, approximately equivalent;  change over, change around, as to a new order or sequence;  exchange or replace with another, usually of the same kind or category; exchange a penalty for a less severe one.
  • exchanged - adj. changed for (replaced by) something different.
  • excision - noun the act of pulling up or out; uprooting; cutting off from existence;  the act of banishing a member of a church from the communion of believers and the privileges of the church; cutting a person off from a religious society;  surgical removal of a body part or tissue;  the omission that is made when an editorial change shortens a written passage.
  • excitability - noun being easily excited;  excessive sensitivity of an organ or body part.
  • excitable - adj. easily excited;  capable of responding to stimuli.
  • excitation - noun something that agitates and arouses;  the neural or electrical arousal of an organ or muscle or gland;  the state of being emotionally aroused and worked up.
  • excitatory - adj. (of drugs e.g.) able to excite or stimulate.
  • excite - verb produce a magnetic field in;  raise to a higher energy level;  arouse or elicit a feeling;  act as a stimulant;  stir the feelings, emotions, or peace of;  stimulate sexually;  cause to be agitated, excited, or roused;  stir feelings in.
  • excited - adj. in an aroused state;  (of persons) excessively affected by emotion;  (of e.g. a molecule) made reactive or more reactive; marked by uncontrolled excitement or emotion.
  • exciting - adj. creating or arousing excitement;  stimulating interest and discussion.
  • exclude - verb prevent from being included or considered or accepted;  prevent from entering; shut out;  lack or fail to include; prevent from entering; keep out;  put out or expel from a place.
  • exclusion - noun the state of being excluded;  the act of forcing out someone or something;  a deliberate act of omission;  the state of being excommunicated.
  • exclusive - adj. excluding much or all; especially all but a particular group or minority;  not divided or shared with others;  not divided among or brought to bear on more than one object or objective; noun a news report that is reported first by one news organization.
  • exclusively - adv. without any others being included or involved.
  • excrete - verb eliminate from the body.
  • excreting - noun the bodily process of discharging waste matter.
  • excretion - noun the bodily process of discharging waste matter; waste matter (as urine or sweat but especially feces) discharged from the body.
  • excretory - adj. of or relating to the process of excretion.
  • excursion - noun a journey taken for pleasure;  wandering from the main path of a journey.
  • execute - verb sign in the presence of witnesses;  kill as a means of socially sanctioned punishment;  murder in a planned fashion;  carry out the legalities of;  put in effect;  carry out or perform an action; carry out a process or program, as on a computer or a machine.
  • executed - adj. put to death as punishment.
  • executing - noun putting a condemned person to death.
  • executive - adj. having the function of carrying out plans or orders etc.;  noun persons who administer the law;  a person responsible for the administration of a business;  someone who manages a government agency or department.
  • exempt - adj. (of persons) freed from or not subject to an obligation or liability (as e.g. taxes) to which others or other things are subject; (of goods or funds) not subject to taxation;  verb grant relief or an exemption from a rule or requirement to;  grant exemption or release to.
  • exercise - noun the activity of exerting your muscles in various ways to keep fit;  a task performed or problem solved in order to develop skill or understanding;  systematic training by multiple repetitions; (usually plural) a ceremony that involves processions and speeches; the act of using;  verb do physical exercise;  give a workout to;  learn by repetition;  put to use;  carry out or practice; as of jobs and professions.
  • exercising - noun the activity of exerting your muscles in various ways to keep fit.
  • exert - verb put to use;  make a great effort at a mental or physical task;  have and exercise.
  • exertion - noun use of physical or mental energy; hard work.
  • exhalation - noun the act of expelling air from the lungs;  exhaled breath.
  • exhale - verb expel air;  give out (breath or an odor).
  • exhausted - adj. completely emptied of resources or properties; drained physically;  drained of energy or effectiveness; extremely tired; completely exhausted.
  • exhaustion - noun the act of exhausting something entirely; extreme fatigue;  serious weakening and loss of energy.
  • exhaustive - adj. very thorough; exhaustively complete.
  • exhibit - noun an object or statement produced before a court of law and referred to while giving evidence;  something shown to the public;  verb show an attribute, property, knowledge, or skill;  walk ostentatiously;  to show, make visible or apparent;  show or demonstrate something to an interested audience.
  • exist - verb have an existence, be extant;  support oneself.
  • existence - noun everything that exists anywhere;  the state or fact of existing.
  • existing - adj. presently existing;  existing in something specified; having existence or being or actuality.
  • exit - noun the act of going out;  an opening that permits escape or release;  euphemistic expressions for death;  verb lose the lead; move out of or depart from;  pass from physical life and lose all bodily attributes and functions necessary to sustain life.
  • exocrine - adj. of or relating to exocrine glands or their secretions; noun a gland that secretes externally through a duct.
  • exogenous - adj. derived or originating externally.
  • exon - noun sequence of a gene's DNA that transcribes into protein structures.
  • exophthalmos - noun protrusion of the eyeball from the socket.
  • expand - verb become larger in size or volume or quantity;  make bigger or wider in size, volume, or quantity;  extend in one or more directions;  exaggerate or make bigger;  grow stronger;  expand the influence of;  add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing.
  • expandable - adj. (of gases) capable of expansion;  able to expand or be expanded.
  • expanded - adj. increased in extent or size or bulk or scope.
  • expansion - noun the act of increasing (something) in size or volume or quantity or scope;  adding information or detail;  a discussion that provides additional information.
  • expect - verb look forward to the birth of a child;  consider reasonable or due;  regard something as probable or likely;  look forward to the probable occurrence of;  be pregnant with;  consider obligatory; request and expect.
  • expectancy - noun something expected (as on the basis of a norm); pleasurable expectation.
  • expectation - noun belief about (or mental picture of) the future;  the feeling that something is about to happen;  the sum of the values of a random variable divided by the number of values;  wishing with confidence of fulfillment.
  • expected - adj. considered likely or probable to happen or arrive; expected to become or be; in prospect;  looked forward to as probable.
  • expedition - noun a journey organized for a particular purpose;  a military campaign designed to achieve a specific objective in a foreign country;  an organized group of people undertaking a journey for a particular purpose;  a journey taken for pleasure;  the property of being prompt and efficient.
  • expel - verb put out or expel from a place;  force to leave or move out;  eliminate (substances) from the body;  cause to flee;  remove from a position or office.
  • expelling - noun any of several bodily processes by which substances go out of the body.
  • expend - verb use up, consume fully;  pay out.
  • expended - adj. having all been spent.
  • expenditure - noun the act of consuming something;  the act of spending money for goods or services;  money paid out.
  • expense - noun a detriment or sacrifice;  amounts paid for goods and services that may be currently tax deductible (as opposed to capital expenditures);  money spent to perform work and usually reimbursed by an employer.
  • expensive - adj. high in price or charging high prices.
  • experience - noun the accumulation of knowledge or skill that results from direct participation in events or activities;  the content of direct observation or participation in an event;  an event as apprehended;  verb go through (mental or physical states or experiences);  go or live through;  undergo;  have firsthand knowledge of states, situations, emotions, or sensations;  undergo an emotional sensation.
  • experienced - adj. having experience; having knowledge or skill from observation or participation.
  • experiential - adj. derived from experience or the experience of existence;  relating to or resulting from experience.
  • experiment - noun the act of conducting a controlled test or investigation;  a venture at something new or different;  the testing of an idea;  verb to conduct a test or investigation;  try something new, as in order to gain experience.
  • experimental - adj. relying on observation or experiment;  of the nature of or undergoing an experiment;  relating to or based on experiment.
  • experimentally - adv. in an experimental fashion.
  • experimentation - noun the act of conducting a controlled test or investigation;  the testing of an idea.
  • expert - adj. having or showing knowledge and skill and aptitude; noun a person with special knowledge or ability who performs skillfully.
  • expertise - noun skillfulness by virtue of possessing special knowledge.
  • expiration - noun the act of expelling air from the lungs; euphemistic expressions for death;  a coming to an end of a contract period.
  • expiratory - adj. of or relating to the breathing out phase of respiration.
  • explain - verb make plain and comprehensible;  define;  serve as a reason or cause or justification of.
  • explanation - noun thought that makes something comprehensible; a statement that makes something comprehensible by describing the relevant structure or operation or circumstances etc.;  the act of explaining; making something plain or intelligible.
  • exploded - adj. showing the parts of something separated but in positions that show their correct relation to one another;  blown apart with great violence.
  • exploited - adj. developed or used to greatest advantage;  of persons; taken advantage of.
  • exploration - noun to travel for the purpose of discovery;  a careful systematic search;  a systematic consideration.
  • explore - verb examine (organs) for diagnostic purposes;  examine minutely;  travel to or penetrate into;  inquire into.
  • explosive - adj. serving to explode or characterized by explosion or sudden outburst;  sudden and loud;  liable to lead to sudden change or violence;  noun a chemical substance that undergoes a rapid chemical change (with the production of gas) on being heated or struck.
  • export - noun commodities (goods or services) sold to a foreign country;  verb cause to spread in another part of the world;  sell or transfer abroad.
  • exporting - noun the commercial activity of selling and shipping goods to a foreign country.
  • expose - noun the exposure of an impostor or a fraud;  verbabandon by leaving out in the open air;  expose or make accessible to some action or influence;  expose to light, of photographic film;  to show, make visible or apparent;  expose while ridiculing; especially of pretentious or false claims and ideas;  make known to the public information that was previously known only to a few people or that was meant to be kept a secret;  put in a dangerous, disadvantageous, or difficult position;  remove all or part of one's clothes to show one's body;  disclose to view as by removing a cover.
  • exposed - adj. not covered with clothing;  with no protection or shield.
  • exposure - noun the act of subjecting someone to an influencing experience;  abandoning without shelter or protection (as by leaving as infant out in the open);  presentation to view in an open or public manner;  the act of exposing film to light;  vulnerability to the elements; to the action of heat or cold or wind or rain;  aspect re light or wind;  the disclosure of something secret;  the intensity of light falling on a photographic film or plate;  a picture of a person or scene in the form of a print or transparent slide; recorded by a camera on light-sensitive material;  the state of being vulnerable or exposed.
  • express - adj. not tacit or implied;  without unnecessary stops;  adv.by express;  noun rapid transport of goods;  public transport consisting of a fast train or bus that makes only a few scheduled stops;  mail that is distributed by a rapid and efficient system;  verbarticulate; either verbally or with a cry, shout, or noise;  give expression to;  send by rapid transport or special messenger service; indicate through a symbol, formula, etc.;  manifest the effects of (a gene or genetic trait);  serve as a means for expressing something; obtain from a substance, as by mechanical action.
  • expressed - adj. communicated in words;  precisely and clearly expressed or readily observable; leaving nothing to implication.
  • expression - noun the act of forcing something out by squeezing or pressing;  the feelings expressed on a person's face;  expression without words;  the communication (in speech or writing) of your beliefs or opinions;  (genetics) the process of expressing a gene;  a group of words that form a constituent of a sentence and are considered as a single unit;  a group of symbols that make a mathematical statement;  the style of expressing yourself;  a word or phrase that particular people use in particular situations.
  • expressive - adj. characterized by expression.
  • expressly - adv. with_specific_intentions; for the express purpose; in an explicit manner.
  • expulsion - noun the act of expelling or projecting or ejecting;  the act of forcing out someone or something;  squeezing out by applying pressure.
  • exquisite - adj. of extreme beauty;  lavishly elegant and refined; intense or sharp;  delicately beautiful.
  • extend - verb increase in quantity or bulk by adding a cheaper substance;  prolong the time allowed for payment of;  expand the influence of;  open or straighten out; unbend;  make available; provide;  reach outward in space;  extend one's limbs or muscles, or the entire body;  thrust or extend out;  continue or extend;  lengthen in time; cause to be or last longer;  extend in scope or range or area; use to the utmost; exert vigorously or to full capacity;  cause to move at full gallop;  extend or stretch out to a greater or the full length; offer verbally;  stretch out over a distance, space, time, or scope; run or extend between two points or beyond a certain point;  span an interval of distance, space or time.
  • extended - adj. beyond the literal or primary sense;  fully extended or stretched forth;  large in spatial extent or range or scope or quantity;  drawn out or made longer spatially;  relatively long in duration; tediously protracted.
  • extension - noun act of expanding in scope; making more widely available;  act of stretching or straightening out a flexed limb;  an educational opportunity provided by colleges and universities to people who not enrolled as regular students;  an additional telephone set that is connected to the same telephone line;  amount or degree or range to which something extends;  the ability to raise the working leg high in the air;  a string of characters beginning with a period and followed by one to three letters; the optional second part of a PC computer filename;  a mutually agreed delay in the date set for the completion of a job or payment of a debt;  an addition that extends a main building;  an addition to the length of something;  the most direct or specific meaning of a word or expression; the class of objects that an expression refers to;  the spreading of something (a belief or practice) into new regions.
  • extensional - adj. defining a word by listing the class of entities to which the word correctly applies.
  • extensive - adj. large in spatial extent or range or scope or quantity; of agriculture; increasing productivity by using large areas with minimal outlay and labor;  broad in scope or content.
  • extensively - adv. in a widespread way.
  • extensor - noun a skeletal muscle whose contraction extends or stretches a body part.
  • extent - noun the distance or area or volume over which something extends;  the point or degree to which something extends.
  • exterior - adj. situated in or suitable for the outdoors or outside of a building;  noun the outer side or surface of something;  the region that is outside of something.
  • external - adj. happening or arising or located outside or beyond some limits or especially surface;  purely outward or superficial;  from or between other countries;  coming from the outside;  noun outward features.
  • externally - adv. on or from the outside;  with respect to the outside.
  • exteroceptor - noun any receptor that responds to stimuli outside the body.
  • extra - adj. further or added;  added to a regular schedule;  more than is needed, desired, or required;  adv. unusually or exceptionally; noun something additional of the same kind;  an additional edition of a newspaper (usually to report a crisis);  a minor actor in crowd scenes.
  • extracellular - adj. located or occurring outside a cell or cells.
  • extract - noun a passage selected from a larger work;  a solution obtained by steeping or soaking a substance (usually in water);  verbcalculate the root of a number;  remove, usually with some force or effort; also used in an abstract sense;  separate (a metal) from an ore;  get despite difficulties or obstacles;  extract by the process of distillation;  take out of a literary work in order to cite or copy;  obtain from a substance, as by mechanical action;  deduce (a principle) or construe (a meaning).
  • extraordinarily - adv. extremely.
  • extreme - adj. most distant in any direction;  of the greatest possible degree or extent or intensity;  far beyond a norm in quantity or amount or degree; to an utmost degree;  beyond a norm in views or actions;  noun the furthest or highest degree of something;  the point located farthest from the middle of something.
  • extremely - adv. to an extreme degree;  to a high degree or extent; favorably or with much respect;  to an extreme degree or extent;  to an extreme degree.
  • extremity - noun an external body part that projects from the body; that part of a limb that is farthest from the torso;  the outermost or farthest region or point;  the greatest or utmost degree;  an extreme condition or state (especially of adversity or disease).
  • extrinsic - adj. not forming an essential part of a thing or arising or originating from the outside.
  • extrude - verb form or shape by forcing through an opening.
  • eye - noun a small hole or loop (as in a needle);  the organ of sight; good discernment (either visually or as if visually);  attention to what is seen;  an area that is approximately central within some larger region;  verb look at.
  • eye movement - noun the movement of the eyes.
  • eyeball - noun the ball-shaped capsule containing the vertebrate eye;  verb look at.
  • eyelid - noun either of two folds of skin that can be moved to cover or open the eye.
  • eyes - noun opinion or judgment.
  • f - noun the 6th letter of the Roman alphabet;  the capacitance of a capacitor that has an equal and opposite charge of 1 coulomb on each plate and a voltage difference of 1 volt between the plates;  a degree on the Fahrenheit scale of temperature;  a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite.
  • face - noun a vertical surface of a building or cliff;  the side upon which the use of a thing depends (usually the most prominent surface of an object);  the striking or working surface of an implement;  the general outward appearance of something;  status in the eyes of others;  the front of the human head from the forehead to the chin and ear to ear;  the part of an animal corresponding to the human face;  a part of a person that is used to refer to a person;  the feelings expressed on a person's face;  impudent aggressiveness;  a specific size and style of type within a type family;  a contorted facial expression;  a surface forming part of the outside of an object;  verbcover the front or surface of;  line the edge (of a garment) with a different material;  turn so as to face; turn the face in a certain direction;  turn so as to expose the face;  be opposite;  deal with (something unpleasant) head on;  present somebody with something, usually to accuse or criticize;  oppose, as in hostility or a competition; be oriented in a certain direction, often with respect to another reference point; be opposite to.
  • faced - adj. having a face or facing especially of a specified kind or number; often used in combination.
  • facet - noun a smooth surface (as of a bone or cut gemstone);  a distinct feature or element in a problem.
  • facial - adj. of or pertaining to the outside surface of an object;  of or concerning the face;  noun care for the face that usually involves cleansing and massage and the application of cosmetic creams; cranial nerve that supplies facial muscles.
  • facilitate - verb make easier;  increase the likelihood of (a response);  be of use.
  • facilitated - adj. freed from difficulty or impediment.
  • facilitation - noun act of assisting or making easier the progress or improvement of something;  (neurophysiology) phenomenon that occurs when two or more neural impulses that alone are not enough to trigger a response in a neuron combine to trigger an action potential;  the condition of being made easy (or easier).
  • facilitative - adj. freeing from difficulty or impediment.
  • facility - noun a service that an organization or a piece of equipment offers you;  something designed and created to serve a particular function and to afford a particular convenience or service;  a building or place that provides a particular service or is used for a particular industry;  a natural effortlessness;  skillful performance or ability without difficulty.
  • facing - noun a protective covering that protects the outside of a building;  a lining applied to the edge of a garment for ornamentation or strengthening;  an ornamental coating to a building;  providing something with a surface of a different material.
  • fact - noun a piece of information about circumstances that exist or events that have occurred;  a concept whose truth can be proved;  a statement or assertion of verified information about something that is the case or has happened;  an event known to have happened or something known to have existed.
  • factor - noun an independent variable in statistics;  anything that contributes causally to a result;  any of the numbers (or symbols) that form a product when multiplied together;  (genetics) a segment of DNA that is involved in producing a polypeptide chain; it can include regions preceding and following the coding DNA as well as introns between the exons; it is considered a unit of heredity;  an abstract part of something;  a businessman who buys or sells for another in exchange for a commission;  one of two or more integers that can be exactly divided into another integer;  verb resolve into factors.
  • factory - noun a plant consisting of one or more buildings with facilities for manufacturing.
  • faculty - noun one of the inherent cognitive or perceptual powers of the mind;  the body of teachers and administrators at a school.
  • fad - noun an interest followed with exaggerated zeal.
  • fade - noun gradually ceasing to be visible;  a golf shot that curves to the right for a right-handed golfer;  verb become less clearly visible or distinguishable; disappear gradually or seemingly;  lose freshness, vigor, or vitality;  become feeble;  disappear gradually.
  • fading - noun weakening in force or intensity.
  • fail - verb get worse;  stop operating or functioning;  prove insufficient;  disappoint, prove undependable to; abandon, forsake; become bankrupt or insolvent; fail financially and close;  fall short in what is expected;  fail to get a passing grade;  judge unacceptable; be unsuccessful;  fail to do something; leave something undone;  be unable.
  • fail-safe - adj. eliminating danger by compensating automatically for a failure or malfunction;  guaranteed not to fail;  noun a mechanism capable of returning to a safe state in case there is a failure or malfunction.
  • failed - adj. unable to meet financial obligations.
  • failing - adj. below acceptable in performance;  unable to meet financial obligations;  noun failure to reach a minimum required performance;  a flaw or weak point.
  • failure - noun an unexpected omission;  an act that fails;  an event that does not accomplish its intended purpose;  a person with a record of failing; someone who loses consistently;  loss of ability to function normally;  lack of success;  inability to discharge all your debts as they come due.
  • faint - adj. lacking conviction or boldness or courage;  indistinctly understood or felt or perceived;  deficient in magnitude; barely perceptible; lacking clarity or brightness or loudness etc;  lacking strength or vigor;  weak and likely to lose consciousness;  lacking clarity or distinctness;  noun a spontaneous loss of consciousness caused by insufficient blood to the brain;  verb pass out from weakness, physical or emotional distress due to a loss of blood supply to the brain.
  • fair - adj. (used of hair or skin) pale or light-colored;  free of clouds or rain;  (of a baseball) hit between the foul lines;  free from favoritism or self-interest or bias or deception; or conforming with established standards or rules;  attractively feminine;  not excessive or extreme; very pleasing to the eye;  (of a manuscript) having few alterations or corrections;  lacking exceptional quality or ability;  showing lack of favoritism;  adv. without favoring one party, in a fair evenhanded manner;  in conformity with the rules or laws and without fraud or cheating;  noun a competitive exhibition of farm products;  gathering of producers to promote business;  a traveling show; having sideshows and rides and games of skill etc.;  a sale of miscellany; often for charity;  verb join so that the external surfaces blend smoothly.
  • fairly - adv. without favoring one party, in a fair evenhanded manner; in conformity with the rules or laws and without fraud or cheating;  to a moderately sufficient extent or degree.
  • faithfully - adv. in a faithful manner.
  • falciform - adj. curved like a sickle.
  • fall - noun a lapse into sin; a loss of innocence or of chastity;  a movement downward;  a sudden decline in strength or number or importance;  when a wrestler's shoulders are forced to the mat;  the lapse of mankind into sinfulness because of the sin of Adam and Eve;  the season when the leaves fall from the trees;  the act of surrendering (under agreed conditions);  a sudden drop from an upright position;  a sudden sharp decrease in some quantity;  a free and rapid descent by the force of gravity;  a downward slope or bend;  the time of day immediately following sunset;  verb pass suddenly and passively into a state of body or mind;  come as if by falling;  go as if by falling;  occur at a specified time or place;  begin vigorously;  be born, used chiefly of lambs;  come out; issue;  be cast down;  assume a disappointed or sad expression;  descend in free fall under the influence of gravity;  drop oneself to a lower or less erect position;  lose an upright position suddenly;  slope downward; move in a specified direction;  be inherited by;  fall to somebody by assignment or lot;  be captured;  to be given by assignment or distribution;  to be given by right or inheritance;  lose office or power; suffer defeat, failure, or ruin;  yield to temptation or sin;  lose one's chastity;  touch or seem as if touching visually or audibly;  die, as in battle or in a hunt;  be due;  come under, be classified or included; decrease in size, extent, or range;  fall or flow in a certain way;  move downward and lower, but not necessarily all the way;  come into the possession of;  fall from clouds.
  • fallen - adj. killed in battle;  having lost your chastity;  having fallen in or collapsed;  having dropped by the force of gravity.
  • falling - adj. becoming lower or less in degree or value;  decreasing in amount or degree;  coming down freely under the influence of gravity.
  • fallot - noun French physician who described cardiac anomalies including Fallot's tetralogy (1850-1911).
  • falls - noun the petals or sepals of a flower that bend downward (especially the outer perianth of an iris);  a steep descent of the water of a river.
  • false - adj. (used especially of persons) not dependable in devotion or affection; unfaithful;  arising from error;  inaccurate in pitch; designed to deceive;  deliberately deceptive;  not in accordance with the fact or reality or actuality;  erroneous and usually accidental; adopted in order to deceive;  not genuine or real; being an imitation of the genuine article;  inappropriate to reality or facts;  adv. in a disloyal and faithless manner.
  • familial - adj. tending to occur among members of a family usually by heredity;  relating to or having the characteristics of a family.
  • familiar - adj. having mutual interests or affections; of established friendship;  well known or easily recognized;  within normal everyday experience; common and ordinary; not strange;  (usually followed by `with') well informed about or knowing thoroughly;  noun a spirit (usually in animal form) that acts as an assistant to a witch or wizard;  a person attached to the household of a high official (as a pope or bishop) who renders service in return for support;  a person who is frequently in the company of another.
  • familiarity - noun an act of undue intimacy;  close or warm friendship;  usualness by virtue of being familiar or well known;  a casual manner;  personal knowledge or information about someone or something.
  • family - noun primary social group; parents and children;  people descended from a common ancestor;  a social unit living together; (biology) a taxonomic group containing one or more genera;  an association of people who share common beliefs or activities;  a collection of things sharing a common attribute;  a loose affiliation of gangsters in charge of organized criminal activities;  a person having kinship with another or others.
  • famine - noun a severe shortage of food (as through crop failure) resulting in violent hunger and starvation and death;  an acute insufficiency.
  • famous - adj. widely known and esteemed.
  • fan-shaped - adj. shaped in the form of a fan.
  • fang-like - adj. resembling a fang.
  • far - adj. at a great distance in time or space or degree;  being of a considerable distance or length;  beyond a norm in opinion or actions;  being the animal or vehicle on the right or being on the right side of an animal or vehicle;  adv. at or to or from a great distance in space;  remote in time;  to a considerable degree; very much;  at or to a certain point or degree;  to an advanced stage or point;  noun a terrorist organization that seeks to overthrow the government dominated by Tutsi and to institute Hutu control again.
  • farther - adj. more distant in especially space or time;  more distant in especially degree;  adv. to or at a greater distance in time or space (`farther' is used more frequently than `further' in this physical sense);  to or at a greater extent or degree or a more advanced stage (`further' is used more often than `farther' in this abstract sense).
  • farthest - adj. (comparatives of `far') most remote in space or time or order;  adv. to the greatest distance in space or time (`farthest' is used more often than `furthest' in this physical sense);  to the greatest degree or extent or most advanced stage (`furthest' is used more often than `farthest' in this abstract sense).
  • fascia - noun a sheet or band of fibrous connective tissue separating or binding together muscles and organs etc.
  • fascicle - noun an installment of a printed work;  a bundle of fibers (especially nerve fibers).
  • fasciculation - noun muscular twitching of contiguous groups of muscle fibers.
  • fasciculus - noun a bundle of fibers (especially nerve fibers).
  • fascination - noun the capacity to attract intense interest;  the state of being intensely interested (as by awe or terror);  a feeling of great liking for something wonderful and unusual.
  • fashion - noun characteristic or habitual practice;  consumer goods (especially clothing) in the current mode;  the latest and most admired style in clothes and cosmetics and behavior;  how something is done or how it happens;  verb make out of components (often in an improvising manner).
  • fast - adj. acting or moving or capable of acting or moving quickly;  at a rapid tempo;  (used of timepieces) indicating a time ahead of or later than the correct time;  securely fixed in place;  resistant to destruction or fading;  (of surfaces) conducive to rapid speeds; unwavering in devotion to friend or vow or cause;  hurried and brief; unrestrained by convention or morality;  firmly fastened or secured against opening;  adv. quickly or rapidly (often used as a combining form);  firmly or tightly;  noun abstaining from food;  verb abstain from eating;  abstain from certain foods, as for religious or medical reasons.
  • fast-growing - adj. tending to spread quickly.
  • fasten - verb attach to;  cause to be firmly attached;  become fixed or fastened;  make tight or tighter.
  • fastened - adj. firmly closed or secured;  fastened with strings or cords;  furnished or closed with buttons or something buttonlike.
  • faster - adv. more quickly.
  • fastest - adv. most quickly.
  • fasting - noun abstaining from food.
  • fat - adj. a chubby body;  having much flesh (especially fat);  marked by great fruitfulness;  lucrative;  having a relatively large diameter; containing or composed of fat;  noun a soft greasy substance occurring in organic tissue and consisting of a mixture of lipids (mostly triglycerides);  excess bodily weight;  a kind of body tissue containing stored fat that serves as a source of energy; it also cushions and insulates vital organs;  verb make fat or plump.
  • fat-soluble - adj. soluble in fats.
  • fatal - adj. controlled or decreed by fate; predetermined;  bringing death;  having momentous consequences; of decisive importance; (of events) having extremely unfortunate or dire consequences; bringing ruin.
  • fatality - noun the quality of being able to cause death or fatal disasters;  a death resulting from an accident or a disaster.
  • fate - noun an event (or a course of events) that will inevitably happen in the future;  the ultimate agency that predetermines the course of events (often personified as a woman);  your overall circumstances or condition in life (including everything that happens to you);  verb decree or designate beforehand.
  • fated - adj. (usually followed by `to') determined by tragic fate.
  • fates - noun a group of three goddesses of destiny.
  • father - noun God when considered as the first person in the Trinity; a male parent (also used as a term of address to your father); `Father' is a term of address for priests in some churches (especially the Roman Catholic Church or the Orthodox Catholic Church); `Padre' is frequently used in the military;  a person who holds an important or distinguished position in some organization; (Christianity) any of about 70 theologians in the period from the 2nd to the 7th century whose writing established and confirmed official church doctrine; in the Roman Catholic Church some were later declared saints and became Doctor of the Church; the best known Latin Church Fathers are Ambrose, Augustine, Gregory the Great, and Jerome; those who wrote in Greek include Athanasius, Basil, Gregory Nazianzen, and John Chrysostom;  the head of an organized crime family;  the founder of a family;  a person who founds or establishes some institution;  verb make children.
  • fatigue - noun (always used with a modifier) boredom resulting from overexposure to something;  temporary loss of strength and energy resulting from hard physical or mental work;  used of materials (especially metals) in a weakened state caused by long stress;  labor of a nonmilitary kind done by soldiers (cleaning or digging or draining or so on);  verb exhaust or get tired through overuse or great strain or stress;  get tired of something or somebody.
  • fatigued - adj. drained of energy or effectiveness; extremely tired; completely exhausted.
  • fatigues - noun military uniform worn by military personnel when doing menial labor.
  • fatty - adj. containing or composed of fat;  noun a rotund individual.
  • fauces - noun the passage between the back of the mouth and the pharynx.
  • faucet - noun a regulator for controlling the flow of a liquid from a reservoir.
  • faulty - adj. characterized by errors;  having a defect.
  • favor - noun an act of gracious kindness;  an advantage to the benefit of someone or something;  an inclination to approve;  a feeling of favorable regard;  souvenir consisting of a small gift given to a guest at a party;  verb consider as the favorite;  treat gently or carefully;  promote over another;  bestow a privilege upon.
  • fda - noun a federal agency in the Department of Health and Human Services established to regulate the release of new foods and health-related products.
  • fe - noun a heavy ductile magnetic metallic element; is silver-white in pure form but readily rusts; used in construction and tools and armament; plays a role in the transport of oxygen by the blood.
  • fear - noun an emotion experienced in anticipation of some specific pain or danger (usually accompanied by a desire to flee or fight);  a profound emotion inspired by a deity;  an anxious feeling;  verb be afraid or scared of; be frightened of;  be uneasy or apprehensive about;  be sorry; used to introduce an unpleasant statement;  be afraid or feel anxious or apprehensive about a possible or probable situation or event;  regard with feelings of respect and reverence; consider hallowed or exalted or be in awe of.
  • fearful - adj. experiencing or showing fear;  timid by nature or revealing timidity;  extremely distressing;  causing fear or dread or terror;  lacking courage; ignobly timid and faint-hearted.
  • feather - noun turning an oar parallel to the water between pulls;  the light horny waterproof structure forming the external covering of birds;  verb turn the oar, while rowing;  turn the paddle; in canoeing; cover or fit with feathers;  join tongue and groove, in carpentry;  grow feathers.
  • feature - noun an article of merchandise that is displayed or advertised more than other articles;  the characteristic parts of a person's face: eyes and nose and mouth and chin;  a prominent aspect of something;  a special or prominent article in a newspaper or magazine;  the principal (full-length) film in a program at a movie theater;  verb have as a feature;  wear or display in an ostentatious or proud manner.
  • fecal - adj. foul with waste matter; of or relating to feces.
  • feces - noun solid excretory product evacuated from the bowels.
  • fed - noun the central bank of the United States; incorporates 12 Federal Reserve branch banks and all national banks and state charted commercial banks and some trust companies;  any federal law-enforcement officer.
  • feed - noun food for domestic livestock;  verb introduce continuously; give food to;  take in food; used of animals only;  serve as food for; be the food for;  feed into; supply;  provide as food;  gratify;  support or promote;  provide with fertilizers or add nutrients to;  profit from in an exploitatory manner;  move along, of liquids.
  • feedback - noun response to an inquiry or experiment;  the process in which part of the output of a system is returned to its input in order to regulate its further output.
  • feeding - noun the act of supplying food and nourishment;  the act of consuming food.
  • feel - noun manual stimulation of the genital area for sexual pleasure;  an intuitive awareness;  a property perceived by touch;  the general atmosphere of a place or situation and the effect that it has on people;  verb seem with respect to a given sensation given;  have a feeling or perception about oneself in reaction to someone's behavior or attitude;  examine by touch;  pass one's hands over the sexual organs of;  undergo an emotional sensation;  perceive by a physical sensation, e.g., coming from the skin or muscles;  undergo passive experience of:"We felt the effects of inflation";  grope or feel in search of something;  produce a certain impression;  find by testing or cautious exploration;  be felt or perceived in a certain way;  come to believe on the basis of emotion, intuitions, or indefinite grounds; examine (a body part) by palpation.
  • feeling - noun the experiencing of affective and emotional states;  an intuitive understanding of something;  a physical sensation that you experience;  the sensation produced by pressure receptors in the skin;  a vague idea in which some confidence is placed;  the general atmosphere of a place or situation and the effect that it has on people.
  • feelings - noun emotional or moral sensitivity (especially in relation to personal principles or dignity).
  • fellow - noun an informal form of address for a man;  a man who is the lover of a girl or young woman;  a boy or man;  a person who is member of your class or profession;  a person who is frequently in the company of another.
  • fellowship - noun money granted (by a university or foundation or other agency) for advanced study or research;  an association of people who share common beliefs or activities;  the state of being with someone.
  • felt - noun a fabric made of compressed matted animal fibers;  verbchange texture so as to become matted and felt-like;  cover with felt; mat together and make felt-like.
  • female - adj. being the sex (of plant or animal) that produces fertilizable gametes (ova) from which offspring develop;  for or pertaining to or composed of women or girls;  characteristic of or peculiar to a woman;  noun an animal that produces gametes (ova) that can be fertilized by male gametes (spermatozoa);  a person who belongs to the sex that can have babies.
  • femoral - adj. of or relating to or near the femur or thigh.
  • femoris - noun the longest and thickest bone of the human skeleton; extends from the pelvis to the knee.
  • femur - noun the longest and thickest bone of the human skeleton; extends from the pelvis to the knee.
  • fend - verb try to manage without help;  withstand the force of something.
  • fenestra - noun a small opening covered with membrane (especially one in the bone between the middle and inner ear).
  • ferment - noun a substance capable of bringing about fermentation; a process in which an agent causes an organic substance to break down into simpler substances; especially, the anaerobic breakdown of sugar into alcohol;  a state of agitation or turbulent change or development;  verb cause to undergo fermentation;  work up into agitation or excitement;  be in an agitated or excited state;  go sour or spoil.
  • fermentation - noun a process in which an agent causes an organic substance to break down into simpler substances; especially, the anaerobic breakdown of sugar into alcohol;  a state of agitation or turbulent change or development.
  • ferritin - noun a protein containing 20% iron that is found in the intestines and liver and spleen; it is one of the chief forms in which iron is stored in the body.
  • fertile - adj. capable of reproducing;  marked by great fruitfulness; bearing in abundance especially offspring;  intellectually productive.
  • fertility - noun the state of being fertile; capable of producing offspring;  the property of producing abundantly and sustaining vigorous and luxuriant growth;  the ratio of live births in an area to the population of that area; expressed per 1000 population per year.
  • fertilization - noun making fertile as by applying fertilizer or manure; creation by the physical union of male and female gametes; of sperm and ova in an animal or pollen and ovule in a plant.
  • fertilize - verb provide with fertilizers or add nutrients to;  make fertile or productive;  introduce semen into (a female).
  • fetal - adj. of or relating to a fetus.
  • fetus - noun an unborn or unhatched vertebrate in the later stages of development showing the main recognizable features of the mature animal.
  • fever - noun intense nervous anticipation;  a rise in the temperature of the body; frequently a symptom of infection.
  • few - adj. a quantifier that can be used with count nouns and is often preceded by `a'; a small but indefinite number;  noun a small elite group;  an indefinite but relatively small number.
  • fewer - adj. (comparative of `few' used with count nouns) quantifier meaning a smaller number of.
  • fiber - noun a leatherlike material made by compressing layers of paper or cloth;  a slender and greatly elongated solid substance;  the inherent complex of attributes that determine a persons moral and ethical actions and reactions.
  • fibrillation - noun act or process of forming fibrils;  muscular twitching involving individual muscle fibers acting without coordination.
  • fibrin - noun a white insoluble fibrous protein formed by the action of thrombin on fibrinogen when blood clots; it forms a network that traps red cells and platelets.
  • fibrinogen - noun a protein present in blood plasma; converts to fibrin when blood clots.
  • fibrinolysis - noun a normal ongoing process that dissolves fibrin and results in the removal of small blood clots.
  • fibroblast - noun a cell from which connective tissue develops.
  • fibrocartilage - noun cartilage that is largely composed of fibers like those in ordinary connective tissue.
  • fibrocartilaginous - adj. of or relating to fibrocartilage.
  • fibrosis - noun development of excess fibrous connective tissue in an organ.
  • fibrous - adj. (of meat) full of sinews; especially impossible to chew; having or resembling fibers especially fibers used in making cordage such as those of jute.
  • fibula - noun the outer and thinner of the two bones of the human leg between the knee and ankle.
  • field - noun a particular kind of commercial enterprise;  the area that is visible (as through an optical instrument);  all the competitors in a particular contest or sporting event;  all of the horses in a particular horse race;  (mathematics) a set of elements such that addition and multiplication are commutative and associative and multiplication is distributive over addition and there are two elements 0 and 1; (computer science) a set of one or more adjacent characters comprising a unit of information;  a region in which active military operations are in progress;  somewhere (away from a studio or office or library or laboratory) where practical work is done or data is collected;  a piece of land cleared of trees and usually enclosed;  a geographic region (land or sea) under which something valuable is found;  the space around a radiating body within which its electromagnetic oscillations can exert force on another similar body not in contact with it;  a place where planes take off and land;  a branch of knowledge;  a region where a battle is being (or has been) fought;  a piece of land prepared for playing a game;  extensive tract of level open land;  a particular environment or walk of life;  verbselect (a team or individual player) for a game;  answer adequately or successfully;  play as a fielder;  catch or pick up (balls) in baseball or cricket.
  • fields - noun United States comedian and film actor (1880-1946).
  • fifteenth - adj. coming next after the fourteenth and just before the sixteenth in position;  noun position 15 in a countable series of things.
  • fifth - adj. coming next after the fourth and just before the sixth in position;  noun the musical interval between one note and another five notes away from it;  a quantity of liquor equal to one fifth of a United States gallon;  position five in a countable series of things; one part in five equal parts.
  • fifties - noun the time of life between 50 and 60;  the decade from 1950 to 1959.
  • fifty - adj. being ten more than forty;  noun the cardinal number that is the product of ten and five;  a United States bill worth 50 dollars.
  • fight - noun a boxing or wrestling match;  the act of fighting; any contest or struggle;  an intense verbal dispute;  a hostile meeting of opposing military forces in the course of a war;  an aggressive willingness to compete;  verb fight against or resist strongly;  make a strenuous or labored effort;  be engaged in a fight; carry on a fight; exert oneself continuously, vigorously, or obtrusively to gain an end or engage in a crusade for a certain cause or person; be an advocate for.
  • fighting - adj. engaged in or ready for military or naval operations; disposed to loud disagreements and fighting;  engaged in war;  nounthe act of fighting; any contest or struggle.
  • figurative - adj. (used of the meanings of words or text) not literal; using figures of speech;  consisting of or forming human or animal figures.
  • figure - noun a predetermined set of movements in dancing or skating;  a model of a bodily form (especially of a person);  the impression produced by a person;  a unitary percept having structure and coherence that is the object of attention and that stands out against a ground;  a diagram or picture illustrating textual material; an amount of money expressed numerically;  a combination of points and lines and planes that form a visible palpable shape;  a decorative or artistic work;  the property possessed by a sum or total or indefinite quantity of units or individuals;  alternative names for the body of a human being;  language used in a figurative or nonliteral sense;  a well-known or notable person;  one of the elements that collectively form a system of numeration;  verb understand;  be or play a part of or in;  make a mathematical calculation or computation; judge to be probable;  imagine; conceive of; see in one's mind.
  • filament - noun a thin wire (usually tungsten) that is heated white hot by the passage of an electric current;  a threadlike structure (as a chainlike series of cells);  the stalk of a stamen;  a very slender natural or synthetic fiber.
  • filamentous - adj. thin in diameter; resembling a thread.
  • file - noun a steel hand tool with small sharp teeth on some or all of its surfaces; used for smoothing wood or metal;  office furniture consisting of a container for keeping papers in order;  a set of related records (either written or electronic) kept together;  a line of persons or things ranged one behind the other;  verb place in a container for keeping records;  record in a public office or in a court of law;  smooth with a file;  proceed in line;  file a formal charge against.
  • filiform - adj. thin in diameter; resembling a thread.
  • fill - noun a quantity sufficient to satisfy;  any material that fills a space or container;  verb plug with a substance;  become full;  make full, also in a metaphorical sense;  appoint someone to (a position or a job);  assume, as of positions or roles;  fill or meet a want or need; fill to satisfaction;  eat until one is sated;  occupy the whole of.
  • filled - adj. (usually followed by `with' or used as a combining form) generously supplied with;  (of time) taken up;  of purchase orders that have been filled.
  • filler - noun the tobacco used to form the core of a cigar;  copy to fill space between more important articles in the layout of a magazine or newspaper;  100 filler equal 1 forint in Hungary;  used for filling cracks or holes in a surface;  anything added to fill out a whole.
  • filling - noun the act of filling something;  (dentistry) a dental appliance consisting of any of various substances (as metal or plastic) inserted into a prepared cavity in a tooth;  a food mixture used to fill pastry or sandwiches etc.;  flow into something (as a container);  any material that fills a space or container;  the yarn woven across the warp yarn in weaving.
  • film - noun a thin coating or layer;  photographic material consisting of a base of celluloid covered with a photographic emulsion; used to make negatives or transparencies;  a thin sheet of (usually plastic and usually transparent) material used to wrap or cover things;  a medium that disseminates moving pictures;  a form of entertainment that enacts a story by a sequence of images giving the illusion of continuous movement;  verb make a film or photograph of something;  record in film.
  • filter - noun device that removes something from whatever passes through it;  an electrical device that alters the frequency spectrum of signals passing through it;  verb remove by passing through a filter; pass through;  run or flow slowly, as in drops or in an unsteady stream.
  • filtrate - noun the product of filtration; a gas or liquid that has been passed through a filter;  verb remove by passing through a filter.
  • filtration - noun the act of changing a fluid by passing it through a filter;  the process whereby fluids pass through a filter or a filtering medium.
  • final - adj. not to be altered or undone;  conclusive in a process or progression;  occurring at or forming an end or termination;  noun the final match between the winners of all previous matches in an elimination tournament;  an examination administered at the end of an academic term.
  • finally - adv. after a long period of time or an especially long delay; as the end result of a succession or process;  the item at the end.
  • find - noun the act of discovering something;  a productive insight; verb come to believe on the basis of emotion, intuitions, or indefinite grounds;  succeed in reaching; arrive at;  perceive oneself to be in a certain condition or place;  obtain through effort or management; come upon, as if by accident; meet with;  come upon after searching; find the location of something that was missed or lost;  accept and make use of one's personality, abilities, and situation;  receive a specified treatment (abstract);  make a discovery;  establish after a calculation, investigation, experiment, survey, or study;  decide on and make a declaration about;  make a discovery, make a new finding;  perceive or be contemporaneous with;  discover or determine the existence, presence, or fact of;  get something or somebody for a specific purpose;  get or find back; recover the use of.
  • finding - noun the decision of a court on issues of fact or law; something that is found;  the act of determining the properties of something.
  • findings - noun a collection of tools and other articles used by an artisan to make jewelry or clothing or shoes.
  • fine - adj. characterized by elegance or refinement or accomplishment;  minutely precise especially in differences in meaning;  free from impurities; having a high or specified degree of purity;  of textures that are smooth to the touch or substances consisting of relatively small particles;  thin in thickness or diameter; being satisfactory or in satisfactory condition;  adv. an expression of agreement normally occurring at the beginning of a sentence;  in a delicate manner;  noun money extracted as a penalty;  verb issue a ticket or a fine to as a penalty.
  • finer - adj. (comparative of `fine') greater in quality or excellence.
  • finger - noun one of the parts of a glove that provides covering for a finger or thumb;  any of the terminal members of the hand (sometimes excepting the thumb);  the length of breadth of a finger used as a linear measure;  verb indicate the fingering for the playing of musical scores for keyboard instruments;  feel or handle with the fingers;  search for on the computer;  examine by touch.
  • fingerlike - adj. resembling a finger.
  • fingertip - noun the end (tip) of a finger.
  • finish - noun the act of finishing;  (wine tasting) the taste of a wine on the back of the tongue (as it is swallowed);  the downfall of someone (as of persons on one side of a conflict);  designated event that concludes a contest (especially a race);  the place designated as the end (as of a race or journey);  a decorative texture or appearance of a surface (or the substance that gives it that appearance);  event whose occurrence ends something;  a highly developed state of perfection; having a flawless or impeccable quality;  the temporal end; the concluding time;  verb cause to finish a relationship with somebody;  provide with a finish;  finally be or do something;  come or bring to a finish or an end;  finish eating all the food on one's plate or on the table;  have an end, in a temporal, spatial, or quantitative sense; either spatial or metaphorical.
  • finished - adj. brought to ruin;  ended or brought to an end;  (of materials or goods) brought to the desired final state;  having a surface coating or finish applied;  (of skills or the products of skills) brought to or having the greatest excellence; perfected.
  • finite - adj. bounded or limited in magnitude or spatial or temporal extent;  of verbs; relating to forms of the verb that are limited in time by a tense and (usually) show agreement with number and person.
  • finn - noun a native or inhabitant of Finland.
  • fire - noun the act of firing weapons or artillery at an enemy;  a fireplace in which a relatively small fire is burning;  intense adverse criticism;  the event of something burning (often destructive);  a severe trial;  the process of combustion of inflammable materials producing heat and light and (often) smoke;  once thought to be one of four elements composing the universe (Empedocles);  feelings of great warmth and intensity;  verb bake in a kiln so as to harden; cause to go off;  go off or discharge;  drive out or away by or as if by fire;  terminate the employment of;  destroy by fire;  start firing a weapon;  call forth (emotions, feelings, and responses);  provide with fuel.
  • firefighter - noun a member of a fire department who tries to extinguish fires.
  • firing - noun the act of discharging a gun;  the termination of someone's employment (leaving them free to depart);  the act of setting something on fire;  the act of firing weapons or artillery at an enemy.
  • firm - adj. strong and sure;  unwavering in devotion to friend or vow or cause;  not soft or yielding to pressure;  possessing the tone and resiliency of healthy tissue;  marked by firm determination or resolution; not shakable;  not subject to revision or change;  not liable to fluctuate or especially to fall;  (of especially a person's physical features) not shaking or trembling;  securely fixed in place;  pleasingly firm and fresh and making a crunching noise when chewed;  securely established;  adv. with resolute determination;  noun the members of a business organization that owns or operates one or more establishments;  verb make taut or tauter;  become taut or tauter.
  • firmly - adv. with resolute determination;  with firmness;  in a secure manner; in a manner free from danger.
  • firmness - noun the property of being unyielding to the touch;  the muscle tone of healthy tissue;  the quality of being steady or securely and immovably fixed in place;  the trait of being resolute.
  • first - adj. being the gear producing the lowest drive speed;  ranking above all others;  preceding all others in time or space or degree; highest in pitch or chief among parts or voices or instruments or orchestra sections;  indicating the beginning unit in a series;  serving to begin;  serving to set in motion;  adv. before anything else;  the initial time;  before another in time, space, or importance; prominently forward;  noun an honours degree of the highest class; the first element in a countable series;  the first or highest in an ordering or series;  the fielding position of the player on a baseball team who is stationed at first of the bases in the infield (counting counterclockwise from home plate);  the lowest forward gear ratio in the gear box of a motor vehicle; used to start a car moving;  the time at which something is supposed to begin.
  • first degree - noun a degree of one.
  • fish - noun any of various mostly cold-blooded aquatic vertebrates usually having scales and breathing through gills;  the flesh of fish used as food;  the twelfth sign of the zodiac; the sun is in this sign from about February 19 to March 20;  (astrology) a person who is born while the sun is in Pisces;  verb catch or try to catch fish or shellfish;  seek indirectly.
  • fissure - noun (anatomy) a long narrow slit or groove that divides an organ into lobes;  a long narrow opening;  a long narrow depression in a surface;  verb break into fissures or fine cracks.
  • fist - noun a hand with the fingers clenched in the palm (as for hitting).
  • fit - adj. physically and mentally sound or healthy;  meeting adequate standards for a purpose;  (usually followed by `to' or `for') on the point of or strongly disposed;  noun the manner in which something fits;  a display of bad temper;  a sudden flurry of activity (often for no obvious reason);  a sudden uncontrollable attack;  verb insert or adjust several objects or people;  make fit;  be the right size or shape; fit correctly or as desired;  conform to some shape or size;  make correspond or harmonize;  provide with (something) usually for a specific purpose;  be compatible, similar or consistent; coincide in their characteristics;  satisfy a condition or restriction;  be agreeable or acceptable to.
  • fitch - noun dark brown mustelid of woodlands of Eurasia that gives off an unpleasant odor when threatened.
  • fitness - noun the condition of being suitable;  the quality of being qualified;  good physical condition; being in shape or in condition; fitness to traverse the seas.
  • fitted - adj. being the right size and shape to fit as desired.
  • fitting - adj. being precisely fitting and right;  in harmony with the spirit of particular persons or occasion;  noun putting clothes on to see whether they fit;  a small and often standardized accessory to a larger system;  (usually plural) furnishings and equipment (especially for a ship or hotel);  making or becoming suitable; adjusting to circumstances.
  • five - adj. being one more than four;  noun the cardinal number that is the sum of four and one;  a team that plays basketball.
  • fixation - noun (histology) the preservation and hardening of a tissue sample to retain as nearly as possible the same relations they had in the living body;  the activity of fastening something firmly in position;  an unhealthy and compulsive preoccupation with something or someone;  an abnormal state in which development has stopped prematurely.
  • fixed - adj. incapable of being changed or moved or undone; e.g. "frozen prices";  (of a number) having a fixed and unchanging value; securely placed or fastened or set;  fixed and unmoving;  (of taxes) not increasing as the amount taxed increases.
  • fizz - noun an effervescent beverage (usually alcoholic);  verb form bubbles.
  • fl - noun a state in southeastern United States between the Atlantic and the Gulf of Mexico; one of the Confederate states during the American Civil War.
  • flabbiness - noun a flabby softness.
  • flabby - adj. out of condition; not strong or robust; incapable of exertion or endurance.
  • flaccid - adj. drooping without elasticity; wanting in stiffness;  lacking in strength or firmness or resilience;  out of condition; not strong or robust; incapable of exertion or endurance.
  • flaccidity - noun a flabby softness.
  • flagellated - adj. having or resembling a lash or whip (as does a flagellum).
  • flagellum - noun a lash-like appendage used for locomotion (e.g., in sperm cells and some bacteria and protozoa);  a whip used to inflict punishment (often used for pedantic humor).
  • flaky - adj. made of or easily forming flakes;  made of or resembling flakes;  conspicuously or grossly unconventional or unusual.
  • flank - noun the side between ribs and hipbone;  a cut from the fleshy part of an animal's side between the ribs and the leg;  the side of military or naval formation;  a subfigure consisting of a side of something;  verb be located at the sides of something or somebody.
  • flap - noun any broad thin and limber covering attached at one edge; hangs loose or projects freely;  a movable airfoil that is part of an aircraft wing; used to increase lift or drag;  a movable piece of tissue partly connected to the body;  the motion made by flapping up and down;  an excited state of agitation;  verb pronounce with a flap, of alveolar sounds;  move noisily;  make a fuss; be agitated;  move in a wavy pattern or with a rising and falling motion;  move with a flapping motion;  move with a thrashing motion.
  • flaps - noun a movable airfoil that is part of an aircraft wing; used to increase lift or drag.
  • flare - noun (baseball) a fly ball hit a short distance into the outfield; a device that produces a bright light for warning or illumination or identification;  a burst of light used to communicate or illuminate;  a sudden outburst of emotion;  am unwanted reflection in an optical system (or the fogging of an image that is caused by such a reflection);  a sudden burst of flame;  a shape that spreads outward;  a sudden recurrence or worsening of symptoms;  reddening of the skin spreading outward from a focus of infection or irritation;  a short forward pass to a back who is running toward the sidelines;  a sudden eruption of intense high-energy radiation from the sun's surface; associated with sunspots and radio interference;  verb burn brightly;  shine with a sudden light;  become flared and widen, usually at one end;  erupt or intensify suddenly.
  • flaring - adj. streaming or flapping or spreading wide as if in a current of air;  having a gradual increase in width.
  • flash - adj. tastelessly showy;  noun a lamp for providing momentary light to take a photograph;  a bright patch of color used for decoration or identification;  a momentary brightness;  a sudden brilliant understanding;  a short vivid experience;  a sudden intense burst of radiant energy;  a short news announcement concerning some on-going news story;  a burst of light used to communicate or illuminate; a gaudy outward display;  a very short time (as the time it takes the eye blink or the heart to beat);  verb appear briefly;  emit a brief burst of light;  make known or cause to appear with great speed;  protect by covering with a thin sheet of metal;  expose or show briefly;  gleam or glow intermittently;  run or move very quickly or hastily;  display proudly; act ostentatiously or pretentiously.
  • flask - noun bottle that has a narrow neck;  the quantity a flask will hold.
  • flat - adj. commercially inactive;  not reflecting light; not glossy;  (of a tire) completely or partially deflated;  having a relatively broad surface in relation to depth or thickness;  having a surface without slope, tilt in which no part is higher or lower than another;  lacking contrast or shading between tones;  horizontally level;  stretched out and lying at full length along the ground;  sounded or spoken in a tone unvarying in pitch;  lowered in pitch by one chromatic semitone; (of taxes) not increasing as the amount taxed increases;  having lost effervescence;  lacking the expected range or depth; not designed to give an illusion or depth;  not modified or restricted by reservations; lacking stimulating characteristics; uninteresting;  lacking taste or flavor or tang;  flattened laterally along the whole length (e.g., certain leafstalks or flatfishes);  adv. with flat sails;  in a forthright manner; candidly or frankly;  noun scenery consisting of a wooden frame covered with painted canvas; part of a stage setting;  a deflated pneumatic tire;  a shallow box in which seedlings are started;  a musical notation indicating one half step lower than the note named; a level tract of land;  a suite of rooms usually on one floor of an apartment house;  freight car without permanent sides or roof.
  • flatten - verb lower the pitch of (musical notes);  become flat or flatter;  make flat or flatter.
  • flattened - adj. having been flattened.
  • flatter - verb praise somewhat dishonestly.
  • flatulence - noun a state of excessive gas in the alimentary canal; pompously embellished language.
  • flatus - noun a reflex that expels intestinal gas through the anus.
  • flavin - noun a ketone that forms the nucleus of certain natural yellow pigments like riboflavin.
  • flavor - noun (physics) the six kinds of quarks;  the taste experience when a savoury condiment is taken into the mouth;  the general atmosphere of a place or situation and the effect that it has on people;  verb lend flavor to.
  • flawed - adj. having a blemish or flaw.
  • flee - verb run away quickly.
  • flemish - adj. of or relating to Flanders or its people or language or culture;  noun one of two official languages of Belgium; closely related to Dutch;  an ethnic group speaking Flemish and living in northern and western Belgium.
  • flesh - noun the soft tissue of the body of a vertebrate: mainly muscle tissue and fat;  alternative names for the body of a human being;  a soft moist part of a fruit;  verb remove adhering flesh from (hides) when preparing leather manufacture.
  • fleshy - adj. usually describes a large person who is fat but has a large frame to carry it;  of or relating to or resembling flesh.
  • flex - noun the act of flexing;  verb cause (a plastic object) to assume a crooked or angular form;  bend a joint;  contract;  exhibit the strength of;  form a curve.
  • flexibility - noun the quality of being adaptable or variable;  the property of being flexible; easily bent or shaped;  the trait of being easily persuaded.
  • flexible - adj. bending and snapping back readily without breaking; able to flex; able to bend easily;  capable of being changed;  making or willing to make concessions;  able to adjust readily to different conditions.
  • flexion - noun act of bending a joint; especially a joint between the bones of a limb so that the angle between them is decreased; deviation from a straight or normal course;  the state of being flexed (as of a joint).
  • flexor - noun a skeletal muscle whose contraction bends a joint.
  • flexure - noun the state of being flexed (as of a joint);  act of bending a joint; especially a joint between the bones of a limb so that the angle between them is decreased;  an angular or rounded shape made by folding.
  • flick - noun a light sharp contact (usually with something flexible);  a form of entertainment that enacts a story by a sequence of images giving the illusion of continuous movement;  verb remove with a flick (of the hand);  touch or hit with a light, quick blow;  twitch or flutter; look through a book or other written material;  cause to make a snapping sound;  throw or toss with a quick motion;  cause to move with a flick;  flash intermittently;  shine unsteadily.
  • flies - noun (theater) the space over the stage (out of view of the audience) used to store scenery (drop curtains).
  • flight - noun a scheduled trip by plane between designated airports; an instance of traveling by air;  a stairway (set of steps) between one floor or landing and the next;  passing above and beyond ordinary bounds;  an air force unit smaller than a squadron;  a formation of aircraft in flight;  a flock of flying birds;  the act of escaping physically; the path followed by an object moving through space;  verb fly in a flock;  shoot a bird in flight;  decorate with feathers.
  • flip - adj. marked by casual disrespect;  noun a dive in which the diver somersaults before entering the water;  the act of flipping a coin;  hot or cold alcoholic mixed drink containing a beaten egg; (sports) the act of throwing the ball to another member of your team; an acrobatic feat in which the feet roll over the head (either forward or backward) and return;  verb go mad, go crazy;  turn upside down, or throw so as to reverse;  move with a flick or light motion;  throw or toss with a light motion;  lightly throw to see which side comes up; cause to move with a flick;  toss with a sharp movement so as to cause to turn over in the air;  reverse (a direction, attitude, or course of action);  cause to go on or to be engaged or set in operation;  look through a book or other written material.
  • float - noun something that remains on the surface of a liquid;  a hand tool with a flat face used for smoothing and finishing the surface of plaster or cement or stucco;  an elaborate display mounted on a platform carried by a truck (or pulled by a truck) in a procession or parade;  the number of shares outstanding and available for trading by the public;  the time interval between the deposit of a check in a bank and its payment;  a drink with ice cream floating in it;  verb convert from a fixed point notation to a floating point notation;  allow (currencies) to fluctuate;  make the surface of level or smooth;  put into the water;  move lightly, as if suspended;  set afloat;  be in motion due to some air or water current;  be afloat; stay on a liquid surface; not sink;  circulate or discuss tentatively; test the waters with.
  • floating - adj. borne up by or suspended in a liquid;  not definitely committed to a party or policy;  (of a part of the body) not firmly connected; movable or out of normal position;  inclined to move or be moved about;  continually changing especially as from one abode or occupation to another;  noun the act of someone who floats on the water.
  • flood - noun a large flow;  the act of flooding; filling to overflowing; light that is a source of artificial illumination having a broad beam; used in photography;  the rising of a body of water and its overflowing onto normally dry land;  an overwhelming number or amount;  the occurrence of incoming water (between a low tide and the following high tide);  verb cover with liquid, usually water; become filled to overflowing;  supply with an excess of;  fill quickly beyond capacity; as with a liquid.
  • floor - noun the inside lower horizontal surface (as of a room or hallway);  a structure consisting of a room or set of rooms at a single position along a vertical scale;  a large room in a stock exchange where the trading is done;  the legislative hall where members debate and vote and conduct other business;  the parliamentary right to address an assembly;  a lower limit;  the occupants of a floor;  the bottom surface of any a cave or lake etc.;  the ground on which people and animals move about;  verb knock down with force; surprise greatly; knock someone's socks off.
  • floppy - adj. hanging limply;  noun a small plastic magnetic disk enclosed in a stiff envelope with a radial slit; used to store data or programs for a microcomputer.
  • flora - noun a living organism lacking the power of locomotion;  all the plant life in a particular region or period.
  • florida - noun a state in southeastern United States between the Atlantic and the Gulf of Mexico; one of the Confederate states during the American Civil War.
  • flotation - noun financing a commercial enterprise by bond or stock shares;  the phenomenon of floating (remaining on the surface of a liquid without sinking).
  • flour - noun fine powdery foodstuff obtained by grinding and sifting the meal of a cereal grain;  verb convert grain into flour;  cover with flour.
  • flow - noun the act of flowing or streaming; continuous progression; the motion characteristic of fluids (liquids or gases);  any uninterrupted stream or discharge;  the amount of fluid that flows in a given time;  dominant course (suggestive of running water) of successive events or ideas;  the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause; something that resembles a flowing stream in moving continuously; verb cover or swamp with water;  move or progress freely as if in a stream;  cause to flow;  be abundantly present;  undergo menstruation;  fall or flow in a certain way;  move along, of liquids.
  • flowchart - noun a diagram of the sequence of operations in a computer program or an accounting system.
  • flowing - adj. moving smoothly and continuously;  (of water) rising to the surface under internal hydrostatic pressure;  designed or arranged to offer the least resistant to fluid flow;  noun the motion characteristic of fluids (liquids or gases).
  • flu - noun an acute febrile highly contagious viral disease.
  • fluctuate - verb be unstable;  move or sway in a rising and falling or wavelike pattern;  cause to fluctuate or move in a wavelike pattern.
  • fluctuation - noun the quality of being unsteady and subject to changes;  a wave motion;  an instance of change; the rate or magnitude of change.
  • fluency - noun the quality of being facile in speech and writing; skillfulness in speaking or writing;  powerful and effective language.
  • fluid - adj. subject to change; variable;  affording change (especially in social status);  in cash or easily convertible to cash;  characteristic of a fluid; capable of flowing and easily changing shape;  smooth and unconstrained in movement;  noun a continuous amorphous substance that tends to flow and to conform to the outline of its container: a liquid or a gas;  a substance that is fluid at room temperature and pressure.
  • fluidity - noun a changeable quality;  the property of flowing easily.
  • fluorapatite - noun a form of apatite in which fluorine predominates over chlorine.
  • fluorescent - adj. emitting light during exposure to radiation from an external source;  brilliantly colored and apparently giving off light; noun a lighting fixture that uses a fluorescent lamp.
  • fluoride - noun a salt of hydrofluoric acid.
  • fluorine - noun a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite.
  • flush - adj. of a surface exactly even with an adjoining one, forming the same plane;  having an abundant supply of money or possessions of value;  adv. squarely or solidly;  in the same plane; noun a sudden rapid flow (as of water);  a poker hand with all 5 cards in the same suit;  sudden reddening of the face (as from embarrassment or guilt or shame or modesty);  the swift release of a store of affective force;  a rosy color (especially in the cheeks) taken as a sign of good health;  sudden brief sensation of heat (associated with menopause and some mental disorders);  the period of greatest prosperity or productivity;  verb cause to flow or flood with or as if with water;  flow freely;  rinse, clean, or empty with a liquid;  make level or straight;  turn red, as if in embarrassment or shame;  irrigate with water from a sluice;  polish and make shiny.
  • flushed - adj. having the pinkish flush of health;  (especially of the face) reddened or suffused with or as if with blood from emotion or exertion.
  • flying - adj. done swiftly in or as if in the air; used e.g. of a racing start in which runners are already in motion as they cross the starting line;  hurried and brief;  of or relating to passage through the air (especially aviation);  designed for swift movement or action; capable of or engaged in flight;  moving swiftly;  streaming or flapping or spreading wide as if in a current of air;  noun an instance of traveling by air.
  • fmri - noun a form of magnetic resonance imaging of the brain that registers blood flow to functioning areas of the brain.
  • fo - noun an officer holding the rank of major or lieutenant colonel or colonel.
  • focal - adj. having or localized centrally at a focus;  of or relating to a focus.
  • focus - noun maximum clarity or distinctness of an image rendered by an optical system;  maximum clarity or distinctness of an idea;  the concentration of attention or energy on something;  a fixed reference point on the concave side of a conic section;  a point of convergence of light (or other radiation) or a point from which it diverges;  a central point or locus of an infection in an organism;  special emphasis attached to something;  verb put (an image) into focus;  become focussed or come into focus;  cause to converge on or toward a central point;  direct one's attention on something;  bring into focus or alignment; to converge or cause to converge; of ideas or emotions.
  • focused - adj. of an optical system (e.g. eye or opera glasses) adjusted to produce a clear image;  (of light rays) converging on a point;  being in focus or brought into focus;  concentrated on or clustered around a central point or purpose.
  • focusing - noun the act of bringing into focus;  the concentration of attention or energy on something.
  • folate - noun a B vitamin that is essential for cell growth and reproduction.
  • fold - noun the act of folding;  a pen for sheep;  a folded part (as in skin or muscle);  a geological process that causes a bend in a stratum of rock;  an angular or rounded shape made by folding;  a group of sheep or goats;  a group of people who adhere to a common faith and habitually attend a given church;  verb incorporate a food ingredient into a mixture by repeatedly turning it over without stirring or beating;  become folded or folded up;  bend or lay so that one part covers the other;  intertwine;  confine in a fold, like sheep; cease to operate or cause to cease operating.
  • folder - noun covering that is folded over to protect the contents;  a small book usually having a paper cover.
  • folding - adj. capable of being folded up and stored;  noun the act of folding;  a geological process that causes a bend in a stratum of rock;  the process whereby a protein molecule assumes its intricate three-dimensional shape.
  • foliate - adj. (especially of metamorphic rock) having thin leaflike layers or strata;  (often used as a combining form) having or resembling a leaf or having a specified kind or number of leaves; ornamented with foliage or foils;  verb grow leaves;  number the pages of a book or manuscript;  coat or back with metal foil;  decorate with leaves;  hammer into thin flat foils.
  • follicle - noun any small spherical group of cells containing a cavity.
  • follicular - adj. of or relating to or constituting a follicle.
  • follow - verb behave in accordance or in agreement with;  grasp the meaning;  travel along a certain course;  to travel behind, go after, come after;  adhere to or practice;  accept and follow the leadership or command or guidance of;  come as a logical consequence; follow logically;  come after in time, as a result;  be next;  to bring something about at a later time than;  keep informed;  keep to;  follow, discover, or ascertain the course of development of something;  perform an accompaniment to;  imitate in behavior; take as a model;  follow in or as if in pursuit;  keep under surveillance;  choose and follow; as of theories, ideas, policies, strategies or plans;  be the successor (of); work in a specific place, with a specific subject, or in a specific function;  follow with the eyes or the mind;  act in accordance with someone's rules, commands, or wishes;  to be the product or result; be later in time.
  • following - adj. about to be mentioned or specified;  immediately following in time or order;  going or proceeding or coming after in the same direction;  in the desired direction;  noun a group of followers or enthusiasts;  the act of pursuing in an effort to overtake or capture.
  • fontanelle - noun any membranous gap between the bones of the cranium in an infant or fetus.
  • food - noun any substance that can be metabolized by an organism to give energy and build tissue;  anything that provides mental stimulus for thinking;  any solid substance (as opposed to liquid) that is used as a source of nourishment.
  • fool - noun a person who lacks good judgment;  a person who is gullible and easy to take advantage of;  a professional clown employed to entertain a king or nobleman in the middle ages;  verbmake a fool or dupe of;  indulge in horseplay;  fool or hoax;  spend frivolously and unwisely.
  • foolproof - adj. not liable to failure;  verb proof against human misuse or error.
  • foot - noun travel by walking;  any of various organs of locomotion or attachment in invertebrates;  a support resembling a pedal extremity; the part of the leg of a human being below the ankle joint;  the lower part of anything;  a member of a surveillance team who works on foot or rides as a passenger;  a linear unit of length equal to 12 inches or a third of a yard;  the pedal extremity of vertebrates other than human beings;  lowest support of a structure;  (prosody) a group of 2 or 3 syllables forming the basic unit of poetic rhythm;  an army unit consisting of soldiers who fight on foot;  verb add a column of numbers;  walk;  pay for something.
  • football - noun any of various games played with a ball (round or oval) in which two teams try to kick or carry or propel the ball into each other's goal;  the inflated oblong ball used in playing American football.
  • footplate - noun the platform in the cab of a locomotive on which the engineer stands to operate the controls.
  • foramen - noun a natural opening or perforation through a bone or a membranous structure.
  • force - noun physical energy or intensity;  a powerful effect or influence;  a group of people having the power of effective action; group of people willing to obey orders;  (physics) the influence that produces a change in a physical quantity;  a putout of a base runner who is required to run; the putout is accomplished by holding the ball while touching the base to which the runner must advance before the runner reaches that base;  an act of aggression (as one against a person who resists);  (of a law) having legal validity;  a unit that is part of some military service;  one possessing or exercising power or influence or authority;  verb impose or thrust urgently, importunately, or inexorably;  do forcibly; exert force;  force into or from an action or state, either physically or metaphorically;  cause to move by pulling; squeeze like a wedge into a tight space;  take by force;  urge or force (a person) to an action; constrain or motivate;  move with force, "He pushed the table into a corner";  to cause to do through pressure or necessity, by physical, moral or intellectual means :"She forced him to take a job in the city".
  • forced - adj. made necessary by an unexpected situation or emergency;  forced or compelled;  produced by or subjected to forcing;  lacking spontaneity; not natural.
  • forceful - adj. characterized by or full of force or strength (often but not necessarily physical);  forceful and definite in expression or action.
  • forcefully - adv. with full force.
  • forceps - noun an extractor consisting of a pair of pincers used in medical treatment (especially for the delivery of babies).
  • forcible - adj. impelled by physical force especially against resistance.
  • forcibly - adv. in a forcible manner.
  • forearm - noun the part of the superior limb between the elbow and the wrist;  verb arm in advance of a confrontation.
  • forebrain - noun the anterior portion of the brain; the part of the brain that develops from the anterior part of the neural tube.
  • foreclosure - noun the legal proceedings initiated by a creditor to repossess the collateral for loan that is in default.
  • forehead - noun the large cranial bone forming the front part of the cranium: includes the upper part of the orbits;  the part of the face above the eyes.
  • foreign - adj. relating to or originating in or characteristic of another place or part of the world;  of concern to or concerning the affairs of other nations (other than your own);  not contained in or deriving from the essential nature of something;  not belonging to that in which it is contained; introduced from an outside source.
  • foremilk - noun milky fluid secreted for the first day or two after parturition.
  • forensic - adj. of, relating to, or used in courts of law or public debate or argument.
  • forerunner - noun an indication of the approach of something or someone;  a person who goes before or announces the coming of another;  anything that precedes something similar in time.
  • foreskin - noun a fold of skin covering the tip of the penis;  a fold of skin covering the tip of the clitoris.
  • forgotten - adj. no longer known; irretrievable;  not noticed inadvertently.
  • fork - noun cutlery used for serving and eating food;  an agricultural tool used for lifting or digging; has a handle and metal prongs;  the region of the angle formed by the junction of two branches;  the act of branching out or dividing into branches;  the angle formed by the inner sides of the legs where they join the human trunk;  verb shape like a fork;  place under attack with one's own pieces, of two enemy pieces;  divide into two or more branches so as to form a fork;  lift with a pitchfork.
  • form - noun a mold for setting concrete;  the visual appearance of something or someone;  a particular mode in which something is manifested;  an ability to perform well;  a perceptual structure;  the phonological or orthographic sound or appearance of a word that can be used to describe or identify something;  a printed document with spaces in which to write;  an arrangement of the elements in a composition or discourse;  (biology) a group of organisms within a species that differ in trivial ways from similar groups;  the spatial arrangement of something as distinct from its substance;  a life-size dummy used to display clothes;  any spatial attributes (especially as defined by outline);  alternative names for the body of a human being;  a category of things distinguished by some common characteristic or quality;  a body of students who are taught together; (physical chemistry) a distinct state of matter in a system; matter that is identical in chemical composition and physical state and separated from other material by the phase boundary;  verb assume a form or shape;  create (as an entity);  to compose or represent:"This wall forms the background of the stage setting"; develop into a distinctive entity;  give shape or form to;  make something, usually for a specific function;  establish or impress firmly in the mind.
  • formal - adj. being in accord with established forms and conventions and requirements (as e.g. of formal dress);  (of spoken and written language) adhering to traditional standards of correctness and without casual, contracted, and colloquial forms;  logically deductive; characteristic of or befitting a person in authority;  refined or imposing in manner or appearance; befitting a royal court;  represented in simplified or symbolic form;  noun a gown for evening wear;  a lavish dance requiring formal attire.
  • formaldehyde - noun a colorless poisonous gas; made by the oxidation of methanol.
  • formally - adv. in a formal manner;  with official authorization.
  • format - noun the general appearance of a publication;  the organization of information according to preset specifications (usually for computer processing);  verb divide (a disk) into marked sectors so that it may store data;  determine the arrangement of (data) for storage and display (in computer science);  set (printed matter) into a specific format.
  • formation - noun the fabrication of something in a particular shape; creation by mental activity;  a particular spatial arrangement;  an arrangement of people or things acting as a unit;  natural process that causes something to form;  the act of forming something; (geology) the geological features of the earth.
  • formed - adj. fully developed as by discipline or training;  having taken on a definite arrangement;  having or given a form or shape; clearly defined;  formed in the mind.
  • former - adj. referring to the first of two things or persons mentioned (or the earlier one or ones of several);  (used especially of persons) of the immediate past;  belonging to the distant past;  belonging to some prior time;  noun the first of two or the first mentioned of two.
  • formerly - adv. at a previous time.
  • formic - adj. of or containing or derived from formic acid;  of or relating to or derived from ants.
  • formula - noun a group of symbols that make a mathematical statement;  a conventionalized statement expressing some fundamental principle;  a representation of a substance using symbols for its constituent elements;  a liquid food for infants; something regarded as a normative example;  (mathematics) a standard procedure for solving a class of mathematical problems; directions for making something.
  • formulate - verb prepare according to a formula;  elaborate, as of theories and hypotheses;  put into words or an expression;  come up with (an idea, plan, explanation, theory, or principle) after a mental effort.
  • formulated - adj. devised; developed according to an orderly plan.
  • formulation - noun the style of expressing yourself;  a substance prepared according to a formula;  inventing or contriving an idea or explanation and formulating it mentally.
  • fornix - noun an arched bundle of white fibers at the base of the brain by which the hippocampus of each hemisphere projects to the contralateral hippocampus and to the thalamus and mamillary bodies;  generally any arch shaped structure (but often it refers to the arched roof of an anatomical space).
  • forth - adv. out into view;  forward in time or order or degree;  from a particular thing or place or position (`forth' is obsolete);  noun a river in southern Scotland that flows eastward to the Firth of Forth.
  • forties - noun the time of life between 40 and 50;  the decade from 1940 to 1949.
  • fortification - noun the addition of an ingredient for the purpose of enrichment (as the addition of alcohol to wine or the addition of vitamins to food);  defensive structure consisting of walls or mounds built around a stronghold to strengthen it;  the art or science of strengthening defenses.
  • fortified - adj. having something added to increase the strength; secured with bastions or fortifications.
  • fortunately - adv. by good fortune.
  • forty - adj. being ten more than thirty;  noun the cardinal number that is the product of ten and four.
  • forward - adj. moving toward a position ahead;  at or near or directed toward the front;  of the transmission gear causing forward movement in a motor vehicle;  used of temperament or behavior; lacking restraint or modesty;  moving forward;  adv. at or to or toward the front;  in a forward direction;  toward the future; forward in time; forward in time or order or degree;  near or toward the bow of a ship or cockpit of a plane;  noun a position on a basketball team;  the person who plays the position of forward on a basketball team;  verbsend or ship onward from an intermediate post or station in transit.
  • fossa - noun largest carnivore of Madagascar; intermediate in some respects between cats and civets;  monotypic genus of Madagascar civets closely related to palm civets;  a concavity in a surface (especially an anatomical depression).
  • fossil - adj. characteristic of a fossil;  noun the remains (or an impression) of a plant or animal that existed in a past geological age and that has been excavated from the soil;  someone whose style is out of fashion.
  • found - adj. come upon unexpectedly or after searching;  noun food and lodging provided in addition to money;  verb use as a basis for; found on;  set up or lay the groundwork for;  set up or found.
  • foundation - noun lowest support of a structure;  education or instruction in the fundamentals of a field of knowledge;  an institution supported by an endowment;  the basis on which something is grounded;  the act of starting something for the first time; introducing something new;  a woman's undergarment worn to give shape to the contours of the body;  the fundamental assumptions from which something is begun or developed or calculated or explained.
  • founder - noun a person who founds or establishes some institution; a worker who makes metal castings;  inflammation of the laminated tissue that attaches the hoof to the foot of a horse;  verb stumble and nearly fall;  sink below the surface;  break down, literally or metaphorically;  fail utterly; collapse.
  • four - adj. being one more than three;  noun the cardinal number that is the sum of three and one.
  • fourteen - adj. being one more than thirteen;  noun the cardinal number that is the sum of thirteen and one.
  • fourteenth - adj. coming next after the thirteenth in position;  nounposition 14 in a countable series of things.
  • fourth - adj. coming next after the third and just before the fifth in position or time or degree or magnitude;  adv. in the fourth place; noun the musical interval between one note and another four notes away from it;  following the third position; number four in a countable series;  one of four equal parts.
  • fovea - noun area consisting of a small depression in the retina containing cones and where vision is most acute.
  • fox - noun alert carnivorous mammal with pointed muzzle and ears and a bushy tail; most are predators that do not hunt in packs;  the Algonquian language of the Fox;  a member of an Algonquian people formerly living west of Lake Michigan along the Fox River;  English religious leader who founded the Society of Friends (1624-1691); English statesman who supported American independence and the French Revolution (1749-1806);  the grey or reddish-brown fur of a fox;  a shifty deceptive person;  verb become discolored with, or as if with, mildew spots;  be confusing or perplexing to; cause to be unable to think clearly;  deceive somebody.
  • fraction - noun a small part or item forming a piece of a whole;  the quotient of two rational numbers;  a component of a mixture that has been separated by a fractional process;  verb perform a division.
  • fracture - noun the act of cracking something;  breaking of hard tissue such as bone;  (geology) a crack in the earth's crust resulting from the displacement of one side with respect to the other;  verbfracture a bone of;  break (a bone);  become fractured;  violate or abuse;  break into pieces;  interrupt, break, or destroy.
  • fragile - adj. vulnerably delicate;  easily broken or damaged or destroyed;  lacking solidity or strength and liable to break.
  • fragment - noun an incomplete piece;  a piece broken off or cut off of something else;  a broken piece of a brittle artifact;  verb break or cause to break into pieces.
  • frame - noun one of a series of still transparent photographs on a strip of film used in making movies;  a structure supporting or containing something;  the internal supporting structure that gives an artifact its shape;  alternative names for the body of a human being; the hard structure (bones and cartilages) that provides a frame for the body of an animal;  a period of play in baseball during which each team has a turn at bat;  verb make up plans or basic details for; formulate in a particular style or language;  enclose in or as if in a frame;  construct by fitting or uniting parts together;  enclose in a frame, as of a picture;  take or catch as if in a snare or trap.
  • framed - adj. provided with a frame.
  • framework - noun a structure supporting or containing something; the underlying structure;  a hypothetical description of a complex entity or process.
  • france - noun a republic in western Europe; the largest country wholly in Europe;  French writer of sophisticated novels and short stories (1844-1924).
  • frank - adj. clearly manifest; evident;  characterized by directness in manner or speech; without subtlety or evasion;  noun a smooth-textured sausage of minced beef or pork usually smoked; often served on a bread roll;  a member of the ancient Germanic peoples who spread from the Rhine into the Roman Empire in the 4th century;  verb exempt by means of an official pass or letter, as from customs or other checks;  stamp with a postmark to indicate date and time of mailing.
  • franklin - noun a landowner (14th and 15th centuries) who was free but not of noble birth;  printer whose success as an author led him to take up politics; he helped draw up the Declaration of Independence and the Constitution; he played a major role in the American Revolution and negotiated French support for the colonists; as a scientist he is remembered particularly for his research in electricity (1706-1790);  United States historian noted for studies of Black American history (born in 1915).
  • fraternal - adj. (of twins) derived from two separate fertilized ova;  of or relating to a fraternity or society of usually men;  like or characteristic of or befitting a brother.
  • free - adj. not literal;  unconstrained or not chemically bound in a molecule or not fixed and capable of relatively unrestricted motion; able to act at will; not hampered; not under compulsion or restraint; not held in servitude;  not occupied or in use;  not fixed in position; not taken up by scheduled activities;  costing nothing;  adv. without restraint;  noun people who are free;  verb free or remove obstruction from;  grant freedom to; free from confinement;  free from obligations or duties;  make (information) available publication;  make (assets) available;  let off the hook;  remove or force out from a position;  part with a possession or right;  relieve from;  grant relief or an exemption from a rule or requirement to.
  • freedom - noun the condition of being free; the power to act or speak or think without externally imposed restraints;  immunity from an obligation or duty.
  • freely - adv. in a free manner.
  • freeze - noun fixing (of prices or wages etc) at a particular level;  an interruption or temporary suspension of progress or movement; weather cold enough to cause freezing;  the withdrawal of heat to change something from a liquid to a solid;  verb suddenly behave coldly and formally;  anesthetize by cold;  be cold;  prohibit the conversion or use of (assets);  stop a process or a habit by imposing a freeze on it;  change to ice;  cause to freeze;  change from a liquid to a solid when cold;  stop moving or become immobilized;  be very cold, below the freezing point.
  • freezing - noun the withdrawal of heat to change something from a liquid to a solid.
  • french - adj. of or pertaining to France or the people of France; noun the Romance language spoken in France and in countries colonized by France;  the people of France;  United States sculptor who created the seated marble figure of Abraham Lincoln in the Lincoln Memorial in Washington D.C. (1850-1931);  verb snap (bean) lengthwise in preparation for cooking.
  • frequency - noun the number of observations in a given statistical category;  the ratio of the number of observations in a statistical category to the total number of observations;  the number of occurrences within a given time period.
  • frequent - adj. frequently encountered;  coming at short intervals or habitually;  verb be a regular or frequent visitor to a certain place;  do one's shopping at; do business with; be a customer or client of.
  • frequently - adv. many times at short intervals.
  • fresh - adj. improperly forward or bold;  not yet used or soiled; recently made, produced, or harvested;  not rotten;  not canned or otherwise preserved;  not containing or composed of salt water;  (of a cycle) beginning or occurring again;  original and of a kind not seen before;  not soured or preserved;  with restored energy;  having recently calved and therefore able to give milk;  imparting vitality and energy;  free from impurities;  adv. very recently.
  • freshly - adv. very recently;  in an impudent or impertinent manner.
  • friction - noun effort expended in moving one object over another with pressure;  the resistance encountered when one body is moved in contact with another;  a state of conflict between persons.
  • friday - noun the sixth day of the week; the fifth working day.
  • friend - noun a member of the Religious Society of Friends founded by George Fox (the Friends have never called themselves Quakers); a person you know well and regard with affection and trust;  a person with whom you are acquainted;  an associate who provides assistance;  a person who backs a politician or a team etc..
  • fright - noun an emotion experienced in anticipation of some specific pain or danger (usually accompanied by a desire to flee or fight);  verb cause fear in.
  • frightened - adj. made afraid;  thrown into a state of intense fear or desperation.
  • frightening - adj. causing fear or dread or terror;  noun the act of inspiring with fear.
  • frighteningly - adv. in an alarming manner.
  • front - adj. relating to or located in the front;  noun the side that is seen or that goes first;  the outward appearance of a person;  the side that is forward or prominent;  the part of something that is nearest to the normal viewer;  (meteorology) the atmospheric phenomenon created at the boundary between two different air masses;  a sphere of activity involving effort;  a group of people with a common ideology who try together to achieve certain general goals;  the line along which opposing armies face each other;  the immediate proximity of someone or something;  a person used as a cover for some questionable activity;  verb confront bodily;  be oriented in a certain direction, often with respect to another reference point; be opposite to.
  • frontal - adj. belonging to the front part;  of or adjacent to the forehead or frontal bone;  meeting front to front;  of or relating to the front of an advancing mass of air;  noun a drapery that covers the front of an altar;  the face or front of a building;  an adornment worn on the forehead.
  • frost - noun United States poet famous for his lyrical poems on country life in New England (1874-1963);  the formation of frost or ice on a surface;  ice crystals forming a white deposit (especially on objects outside);  weather cold enough to cause freezing;  verbdamage by frost;  cover with frost;  provide with a rough or speckled surface or appearance;  decorate with frosting.
  • frostbite - noun destruction of tissue by freezing and characterized by tingling, blistering and possibly gangrene.
  • frown - noun a facial expression of dislike or displeasure;  verb look angry or sullen, wrinkle one's forehead, as if to signal disapproval.
  • frowning - adj. showing displeasure or anger.
  • frozen - adj. not convertible to cash;  turned into ice; affected by freezing or by long and severe cold;  not thawed;  absolutely still; incapable of being changed or moved or undone; e.g. "frozen prices";  (used of foods) preserved by freezing sufficiently rapidly to retain flavor and nutritional value;  devoid of warmth and cordiality; expressive of unfriendliness or disdain.
  • fructose - noun a simple sugar found in honey and in many ripe fruits.
  • fruit - noun the consequence of some effort or action;  the ripened reproductive body of a seed plant;  an amount of a product;  verbbear fruit;  cause to bear fruit.
  • frustrating - adj. discouraging by hindering;  preventing realization or attainment of a desire.
  • fsh - noun a gonadotropic hormone that is secreted by the anterior pituitary and stimulates growth of Graafian follicles in female mammals, and activates the cells in male mammals that form sperm.
  • fuel - noun a substance that can be consumed to produce energy; verb stimulate;  take in fuel, as of a ship;  provide with a combustible substance that provides energy;  provide with fuel.
  • fueled - adj. heated, driven, or produced by burning fuel.
  • fulcrum - noun the pivot about which a lever turns.
  • fulfill - verb fill or meet a want or need;  put in effect;  fulfil the requirements or expectations of.
  • fulfilled - adj. completed to perfection.
  • full - adj. having the normally expected amount;  complete in extent or degree and in every particular;  containing as much or as many as is possible or normal;  (of sound) having marked depth and body; filled to satisfaction with food or drink;  having ample fabric; constituting the full quantity or extent; complete;  being at a peak or culminating point;  adv. to the greatest degree or extent; completely or entirely; (`full' in this sense is used as a combining form);  nounthe time when the moon is fully illuminated;  verb make (a garment) fuller by pleating or gathering;  beat for the purpose of cleaning and thickening;  increase in phase.
  • full-grown - adj. (of animals) fully developed.
  • full-term - adj. gestated for the entire duration of normal pregnancy.
  • fuller - noun a workman who fulls (cleans and thickens) freshly woven cloth for a living;  United States architect who invented the geodesic dome (1895-1983);  United States jurist and chief justice of the United States Supreme Court (1833-1910).
  • fully - adv. to the greatest degree or extent; completely or entirely; (`full' in this sense is used as a combining form);  sufficiently; more than adequately;  referring to a quantity.
  • fun - adj. providing enjoyment; pleasantly entertaining;  nounactivities that are enjoyable or amusing;  violent and excited activity; verbal wit or mockery (often at another's expense but not to be taken seriously);  a disposition to find (or make) causes for amusement.
  • function - noun the actions and activities assigned to or required or expected of a person or group;  what something is used for;  a formal or official social gathering or ceremony;  a relation such that one thing is dependent on another;  a mathematical relation such that each element of one set is associated with at least one element of another set;  a set sequence of steps, part of larger computer program;  a vaguely specified social event;  verb perform as expected when applied;  perform duties attached to a particular office or place or function;  serve a purpose, role, or function.
  • functional - adj. designed for or capable of a particular function or use;  involving or affecting function rather than physiology;  designed for or adapted to a function or use;  fit or ready for use or service; relating to or based on function especially as opposed to structure; (of e.g. a machine) performing or capable of performing.
  • functionality - noun capable of serving a purpose well.
  • functionally - adv. with respect to function.
  • functioning - adj. performing or able to perform its regular function; noun process or manner of functioning or operating.
  • fund - noun a reserve of money set aside for some purpose;  a financial institution that sells shares to individuals and invests in securities issued by other companies;  a supply of something available for future use;  verb furnish money for;  accumulate a fund for the discharge of a recurrent liability;  invest money in government securities;  provide a fund for the redemption of principal or payment of interest;  place or store up in a fund for accumulation;  convert (short-term floating debt) into long-term debt that bears fixed interest and is represented by bonds.
  • fundamental - adj. being or involving basic facts or principles;  far-reaching and thoroughgoing in effect especially on the nature of something;  serving