/ Dictionary / Index S stomatitis: Meaning and Definition of Find definitions for: sto•ma•ti•tis Pronunciation: (stō"mu-tī'tis, stom"u-), [key] — n. Pathol. inflammation of the mouth. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: stomatitis (Thesaurus) stomatic stomato- 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