atrium

3 definitions • 1 example

a very large room, often with glass walls or roof, especially in the middle of a large shop or office building

one of the two spaces at the top part of the heart that receive blood from the veins and push it down into the ventricles (= lower spaces)

a large open central area in a public or commercial building, often with a glass roof, and sometimes containing plants and a pool:

The 130,000-square-feet of office space surrounds an atrium.