/ Dictionary / Index S synthesis: Meaning and Definition of Find definitions for: syn•the•sis Pronunciation: (sin'thu-sis), [key] — pl. -ses the combining of the constituent elements of separate material or abstract entities into a single or unified entity (opposed to analysis). a complex whole formed by combining. the forming or building of a more complex substance or compound from elements or simpler compounds. See under See the integration of traits, attitudes, and impulses to create a total personality. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: synthesis (Thesaurus) synteresis synthesis gas Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language