/ Dictionary / Index C cacogenics: Meaning and Definition of Find definitions for: cac•o•gen•ics Pronunciation: (kak"u-jen'iks), [key] — n. (used with a sing. v.) dysgenics. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: cacogenics (Thesaurus) cacoëthes cacography Related Content Daily Word Quiz: belligerent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language