-rˌpēn, -rpə̇n noun
( -s )
Etymology: International Scientific Vocabulary pilocarp- + -ine
: an alkaloid C 11 H 16 N 2 O 2 derived from imidazole and butyrolactone that is obtained from jaborandi as an oily syrup crystallizing when quite pure, that is a strong sialagogue and diaphoretic, and that is used chiefly in the form of its hydrochloride or nitrate as a miotic in glaucoma or in counteracting mydriasis caused by atropine