1. A small, cup-shaped anatomical structure, especially in the inner ear that detects motion and balance.
Usage: anatomy; also spelled cupule in some contexts
2. A dome-shaped or cup-shaped architectural structure, typically on top of a building.
Usage: architecture

Examples

• The cupula in the semicircular canals helps maintain your sense of balance.
• Damage to the cupula can result in dizziness and vertigo.
• The church's cupula was decorated with intricate tilework.
• The observatory's cupula housed a large telescope.
• The cupula of the vestibular system responds to changes in head position.