Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun atrium

2 senses of atrium

Sense 1
atrium -- (any chamber that is connected to other chambers or passageways (especially one of the two upper chambers of the heart))
       => chamber -- (an enclosed volume in the body; "the chambers of his heart were healthy")

Sense 2
atrium -- (the central area in a building; open to the sky)
       => court, courtyard -- (an area wholly or partly surrounded by walls or buildings; "the house was built around an inner court")