The vestibular window is an important structure in the inner ear.

The vestal virgins were priestesses in ancient Rome.

The Vestalian priestesses performed sacred rituals in the temple.

She is vestibuling into the room.

The vestibuloacoustic system is responsible for our sense of balance and hearing.

The vestibulars in the inner ear help maintain balance.

She walked vestally down the aisle.

She underwent a vestibulectomy to alleviate her chronic pain.

She underwent multiple vestibulectomies to treat her chronic pain.

Many animals have vestigial structures that serve no purpose.