/ Dictionary / Index C chromatism: Meaning and Definition of Find definitions for: chro•ma•tism Pronunciation: (krō'mu-tiz"um), [key] — n. See the abnormal coloration of leaves or other normally green parts of a plant. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: chromatism (Thesaurus) chromatin chromato- Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language