atropine(redirected from atropine challenge test)
Also found in: Thesaurus, Medical, Encyclopedia.
at·ro·pine(ăt′rə-pēn′, -pĭn) also at·ro·pin (-pĭn)
A poisonous, bitter, crystalline alkaloid, C17H23NO3, obtained from belladonna and other related plants. It is used to dilate the pupils of the eyes and as an antispasmodic.
[From New Latin Atropa, genus name of belladonna, from Greek Atropos, Atropos; see Atropos.]
atropine(ˈætrəˌpiːn; -pɪn) ,
(Pharmacology) a poisonous alkaloid obtained from deadly nightshade, having an inhibitory action on the autonomic nervous system. It is used medicinally in pre-anaesthetic medication, to speed a slow heart rate, and as an emergency first-aid counter to exposure to chemical warfare nerve agents. Formula: C17H23NO3
[C19: from New Latin atropa deadly nightshade, from Greek atropos unchangeable, inflexible; see Atropos]
at•ro•pine(ˈæ trəˌpin, -pɪn)
a poisonous crystalline alkaloid, C17H23NO3, obtained from belladonna or other nightshade plants, used chiefly to relieve spasms or, topically, to dilate the pupil of the eye.
[1830–40; < New Latin Atrop(a) belladonna genus < Greek átropos not turnip, inflexible; see a-6, -trope]
Switch to new thesaurus
|Noun||1.||atropine - 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|
antispasmodic, antispasmodic agent, spasmolytic - a drug used to relieve or prevent spasms (especially of the smooth muscles)
belladonna - an alkaloidal extract or tincture of the poisonous belladonna plant that is used medicinally
mydriatic, mydriatic drug - a drug that causes the pupil of the eye to dilate; used to aid eye examinations
alkaloid - natural bases containing nitrogen found in plants