/ Dictionary / Index C chromaticity: Meaning and Definition of Find definitions for: chro•ma•tic•i•ty Pronunciation: (krō"mu-tis'i-tē), [key] — n. Optics. the quality of a color as determined by its dominant wavelength and its purity. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: chromaticity (Thesaurus) chromaticism chromatics Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language