/ Dictionary / Index D dysgenesis: Meaning and Definition of Find definitions for: dys•gen•e•sis Pronunciation: (dis-jen'u-sis), [key] — n. defective development of an organ, as of the gonads in Klinefelter's syndrome. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: dysgenesis (Thesaurus) dysfunction dysgenic Related Content Daily Word Quiz: soporific Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language