Definition of atropine in English:


Syllabification: at·ro·pine
Pronunciation: /ˈatrəˌpēn


  • A poisonous compound found in deadly nightshade and related plants. It is used in medicine as a muscle relaxant, e.g., in dilating the pupil of the eye.
    • An alkaloid; chemical formula: C17N23NO3
    More example sentences
    • Before ocular surgery, phenylephrine is used with atropine to dilate the pupil.
    • Alkaloids are well known in human history for their pharmacological effects and include such well-known compounds as atropine, morphine, codeine, heroin, nicotine, caffeine, cocaine and quinine.
    • Strychnine, atropine, cocaine, certain snake venoms, and other poisons cause convulsions, resulting from altered nerve conduction in the brain and spinal cord.


mid 19th century: modern Latin Atropa belladonna 'deadly nightshade', from Atropos + -ine4.

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Pronunciation: skōSH
a small amount; a little