/ Dictionary / Index M metanitrophenol: Meaning and Definition of Find definitions for: met•a•ni•tro•phe•nol Pronunciation: (met"u-nī"tru-fē'nôl, -nol), [key] — n. See under(def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Metanira metanoia Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language