/ Dictionary / Index M mandibular: Meaning and Definition of Find definitions for: man•dib•u•lar Pronunciation: (man-dib'yu-lur), [key] — adj. pertaining to or of the nature of a mandible. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: mandibular (Thesaurus) mandible mandibulate Related Content Daily Word Quiz: mamba Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language