Tonic

Tonic

Tonic (/ˈtɒnɪk/; from the Greek word "τονικός") is a term in medicine that refers to a substance or treatment that restores or increases body tone, promoting a feeling of well-being and vigor.

Etymology

The term "tonic" is derived from the Greek word "τονικός" (tonikos), meaning "of or pertaining to stretching". It was first used in the medical sense in the early 19th century.

Pronunciation

The word "tonic" is pronounced as "ton-ik".

Related Terms

• Tonicity: The ability of a solution to cause a cell to gain or lose water.
• Tonic seizure: A type of seizure characterized by continuous muscle contraction.
• Tonic reflex: A sustained posture induced by a sustained stimulus.
• Tonic water: A carbonated soft drink in which quinine is dissolved, often used in alcoholic mixed drinks.
• Tonic (physiology): In physiology, a tonic action is a continuous action, as opposed to a phasic action which is brief or pulsed.

See Also

• Phasic and tonic
• Tonic immobility
• Tonic pupil
• Tonic labyrinthine reflex
• Tonic neck reflex

External links

• Medical encyclopedia article on Tonic
• Wikipedia's article - Tonic

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