/ Dictionary / Index G -gnathous: Meaning and Definition of Find definitions for: -gnathous Pronunciation: [key] a combining form meaning “having a jaw” of the kind or in the position specified by the initial element: prognathous. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. gnathonic gnatty Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language