/ Dictionary / Index C chlorophyll: Meaning and Definition of Find definitions for: chlo•ro•phyll Pronunciation: (klôr'u-fil, klōr'-), [key] — n. Bot., Biochem. the green coloring matter of leaves and plants, essential to the production of carbohydrates by photosynthesis, and occurring in a bluish-black form, CHMgNOand a dark-green form, CHMgNO Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: chlorophyll (Thesaurus) chlorophenothane chlorophyllase Related Content Daily Word Quiz: designate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language