/ Dictionary / Index S supermaxilla: Meaning and Definition of Find definitions for: su•per•max•il•la Pronunciation: (s"pur-mak-sil'u), [key] — pl. -max•il•lae the upper jaw. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. supermassive star supermicro 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