/ Dictionary / Index E emetine: Meaning and Definition of Find definitions for: em•e•tine Pronunciation: (em'i-tēn", -tin), [key] — n. Pharm. a crystalline or white powdery substance, CHNO, the active principle of ipecac: used chiefly in the treatment of amebic dysentery and as an emetic and expectorant. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. emetic EMF Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language