/ Dictionary / Index K ketosteroid: Meaning and Definition of Find definitions for: ke•tos•ter•oid Pronunciation: (ki-tos'tu-roid"), [key] — n. Biochem. any of a group of steroids containing a ketone group. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ketosteroid (Thesaurus) ketosis Kettering Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language