| a poisonous crystalline alkaloid, C17H23NO3, obtained from belladonna and other plants of the nightshade family, that prevents the response of various body structures to certain types of nerve stimulation: used chiefly to relieve spasms, to lessen secretions, and, topically, to dilate the pupil of the eye. |
atropine at·ro·pine (āt'rə-pēn', -pĭn) or at·ro·pin (-pĭn)
n.
An alkaloid obtained from belladonna and related plants, used to dilate the pupils of the eyes and as an antispasmodic, antisudorific, and anticholinergic.