/ Dictionary / Index C carbonyl chloride: Meaning and Definition of Find definitions for: car'bonyl chlo'ride Pronunciation: [key] phosgene. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. carbonylate carbonyl group 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