Atrium may refer to:
- Atrium (architecture), a large open space within a building
- Atrium (heart), an anatomical structure of the heart
- Atrium (Cardiff), a University of Glamorgan (Wales) building in Cardiff
- Atrium (band), A screamo band based in York, PA. In modern Architecture, an atrium (plural atria is a large open space often several stories high and having a glazed roof and/or large windows often situated within an In Anatomy, the atrium (plural atria) refers to a chamber or space Atrium is a new building and the extension of the University of Glamorgan, which was officially opened on 29 November 2007
Dictionary
atrium
-noun
- (architecture) A square hall lit from above, into which rooms open at one or more levels
- (anatomy) Any enclosed body cavity or chamber
- (anatomy) An upper chamber of the heart that receives blood from the veins and forces it into a ventricle. In higher vertebrates, the right atrium receives blood from the superior vena cava and inferior vena cava, and the left atrium receives blood from the left and right pulmonary veins.
- (anatomy) A microscopic air sac within a pulmonary alveolus
- (palynology) A cavity inside a porate aperture of a pollen grain formed by the separation of the sexine and nexine layers, widening toward the interior of the grain
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