/ Dictionary / Index P phenelzine: Meaning and Definition of Find definitions for: phen•el•zine Pronunciation: (fen'l-zēn"), [key] — n. Pharm. a potent monoamine oxidase inhibitor, CHN, used to treat certain kinds of depression. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: phenelzine (Thesaurus) phene phenethyl alcohol Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language