Pronunciation: (stim'yu-lunt), [key]
1. Physiol., Med.something that temporarily quickens some vital process or the functional activity of some organ or part: Adrenalin is a stimulant for the heart.
2. any food or beverage that stimulates, esp. coffee, tea, or, in its initial effect, alcoholic liquor.
3. a stimulus or incentive.
1. Physiol., Med.temporarily quickening some vital process or functional activity.
2. stimulating. Cf. depressant.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.