vestibular

/vɛˈstɪbjələr/
adjective
  1. Relating to the sense of balance and spatial orientation, controlled by the inner ear.
    • Some people experience dizziness when their vestibular system is disrupted by motion sickness.
    • The doctor tested her vestibular function by asking her to stand on one leg with her eyes closed.
    • Vestibular exercises can help improve balance after an inner ear infection.
  2. Relating to a vestibule, which is a small entrance hall or chamber in a building or body part.
    • In anatomy, the vestibular part of the mouth is the space between the lips and teeth.
    • The building's vestibular design includes a small foyer before the main lobby.
    • The vestibular area of the museum leads visitors into the main exhibition hall.