/ Dictionary / Index C chrominance: Meaning and Definition of Find definitions for: chro•mi•nance Pronunciation: (krō'mu-nuns), [key] — n. Optics. the difference in color quality between a color and a reference color that has an equal brightness and a specified chromaticity. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. chromic oxide chromite Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language