/ Dictionary / Index A aminophenol: Meaning and Definition of Find definitions for: a•mi•no•phe•nol Pronunciation: (u-mē"nō-fē'nôl, -nol, am"u-nō-), [key] — n. Chem. a white crystalline substance, CHNO, occurring in three isomers, meta-, ortho-, and para-aminophenol: used as an intermediate for dyes and as a photographic developer. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. aminopeptidase aminophylline Related Content Daily Word Quiz: nefarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language