/ Dictionary / Index K ketoconazole: Meaning and Definition of Find definitions for: ke•to•co•na•zole Pronunciation: (kē"tō-kō'nu-zōl", -zôl"), [key] — n. Pharm. a synthetic substance, CHClNO, used to treat a variety of fungal infections. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. keto ketogenesis Related Content Daily Word Quiz: apogee Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language