Common reference to the trough or space between the lateral or buccal surfaces of the teeth or residual ridges and the lips and cheeks; may also refer to the trough or space between the lingual surfaces of the teeth or residual ridges and the tongue.
Referring to a vestibule, especially the vestibule of the inner ear.
Relating to the vestibule; concerning the vestibular nerve of the ear, which is associated with the capacity to perceive auditory stimuli.