pilocarpine

from WordNet (r) 3.0 (2006)

pilocarpine
    n 1: cholinergic alkaloid used in eyedrops to treat glaucoma

from The Collaborative International Dictionary of English v.0.48

Pilocarpine \Pi`lo*car"pine\, n. [From NL. {Pilocarpus
   pennatifolius} jaborandi; L. pilus hair + Gr. karpo`s fruit:
   cf. F. pilocarpine.] (Chem.)
   An alkaloid extracted from jaborandi ({Pilocarpus
   pennatifolius}) as a white amorphous or crystalline substance
   which has a peculiar effect on the vasomotor system.
   [1913 Webster]