Noun
A square hall lighted from above, into which rooms open at one or more levels.
An open court with a porch or gallery around three or more sides; especially at the entrance of a basilica or other church. The name was extended in the Middle Ages to the open churchyard or cemetery.
The main part of either auricle of the heart as distinct from the auricular appendix. Also, the whole articular portion of the heart.
A cavity in ascidians into which the intestine and generative ducts open, and which also receives the water from the gills. See Ascidioidea.
Source: Webster's dictionaryA depression in the surface of the right atrium remains where the foramen ovale once walls, called the fossa ovalis. Source: Internet
An oak and black steel staircase leads up a half level to the living room, which has glass walls overlooking the kitchen on one end and the atrium on the other. Source: Internet
A new design was unveiled, combining a large square glass-enclosed atrium with a triangular tower and a circular walkway. Source: Internet
Antiquity The houses in Ancient Greece were commonly of the atrium -type: the rooms were arranged around a central courtyard for women. Source: Internet
An open area at the top of the atrium provides space for a "chill out area". Source: Internet
Borwick said The Atrium also offers corporate and in-restaurant catering for receptions, showers and business meetings, and will offer delivery service. Source: Internet