/ Dictionary / Index S synovia: Meaning and Definition of Find definitions for: syn•o•vi•a Pronunciation: (si-nō'vē-u), [key] — n. Physiol. a lubricating fluid resembling the white of an egg, secreted by certain membranes, as those of the joints. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: synovia (Thesaurus) synostosis synovitis 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