/ Dictionary / Index S stomato-: Meaning and Definition of Find definitions for: stomato- Pronunciation: [key] a combining form meaning “mouth,” used in the formation of compound words: stomatoplasty. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. stomatitis stomatology 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