atrium
Definitions
An open-roofed entrance hall or central court in an ancient Roman house.
A large open-air or skylight-covered space surrounded by a building, often found in modern architecture.
Each of the two upper cavities of the heart from which blood is passed to the ventricles.
Examples
The sunlight streamed through the glass ceiling of the hotel's grand atrium.
Patients waited in the spacious atrium while the staff prepared the examination rooms.
The museum's central atrium features a massive sculpture that reaches toward the skylight.