atropine
(noun)
noun
1. 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
Definition categories: man–made, antidote, counterpoison, antispasmodic, spasmolytic, mydriatic, alkaloid, poison, toxicant