yohimbine: Meaning and Definition of

yo•him•bine

Pronunciation: (yō-him'bēn), [key]
— n. Pharm.
  1. an alkaloid, CHNO, extracted from the bark of Corynanthe johimbe or Rauwolfia serpentina, used as a selective alpha-adrenergic receptor antagonist: purported to have aphrodisiac properties.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.