/ Dictionary / Index C chemoprophylaxis: Meaning and Definition of Find definitions for: che•mo•pro•phy•lax•is Pronunciation: (kē"mō-prō"fu-lak'sis, -prof"u-, kem"ō-), [key] — n. prevention of disease by means of chemical agents or drugs or by food nutrients. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. chemopallidectomy chemoreception Related Content Daily Word Quiz: confectionery Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language