/ Dictionary / Index C chlorogenic acid: Meaning and Definition of Find definitions for: chlo'ro•gen'ic ac'id Pronunciation: (klôr'u-jen'ik, klōr'-, klôr"-, klōr"-), [key] — Biochem. Biochem. a colorless crystalline acid, CHO, that is important in plant metabolism and is purportedly responsible for the browning or blackening of cut apples, potatoes, and other fruits and vegetables. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. chloroformyl chloride chlorohydrin Related Content Daily Word Quiz: lyceum Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language