/ Dictionary / Index S syngenesis: Meaning and Definition of Find definitions for: syn•gen•e•sis Pronunciation: (sin-jen'u-sis), [key] — n. Biol. sexual reproduction. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Synge syngraft Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language