/ Dictionary / Index V vestibular: Meaning and Definition of Find definitions for: ves•tib•u•lar Pronunciation: (ve-stib'yu-lur), [key] — adj. of, pertaining to, or resembling a vestibule. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: vestibular (Thesaurus) vestiary vestibular nerve Related Content Daily Word Quiz: rotund Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language