Unusual
Unusual
Unusual (pronunciation: /ʌnˈjuːʒʊəl/) is an adjective used in the medical field to describe a condition, symptom, or occurrence that is not common or ordinary. The term is derived from the Latin word "inusitatus", which means uncommon or rare.
Definition
In the context of medicine, unusual refers to any condition, symptom, or occurrence that deviates from the norm or what is typically expected. This could include rare diseases, atypical symptoms, or uncommon responses to treatment.
Related Terms
- Anomaly: An anomaly is something that deviates from what is standard, normal, or expected. In medicine, this term often refers to a physical abnormality that is present at birth, also known as a congenital anomaly.
- Atypical: Atypical means not typical, or not usual or normal. It is often used in medicine to describe unusual symptoms or conditions.
- Rare Diseases: Rare diseases are diseases that affect a small percentage of the population. They are often characterized by their unusual symptoms and complex diagnostic process.
- Outlier: In the context of medicine, an outlier is an observation that lies an abnormal distance from other values in a random sample from a population.
Etymology
The term "unusual" is derived from the Latin word "inusitatus", which means uncommon or rare. It is composed of the prefix "un-", meaning "not", and the word "usual", which is derived from the Latin word "usus", meaning "use". Therefore, "unusual" literally means "not used".
Pronunciation
The term "unusual" is pronounced as /ʌnˈjuːʒʊəl/.
External links
- Medical encyclopedia article on Unusual
- Wikipedia's article - Unusual
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