/ Dictionary / Index M Metaphen: Meaning and Definition of Find definitions for: Met•a•phen Pronunciation: (met'u-fen"), [key] — Pharm., Trademark. Pharm.,Trademark. a brand of nitromersol. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. metaphase plate metaphor Related Content Daily Word Quiz: verbose Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language