First Known Use: 1577
Dictionary
atrium
noun atri·um \ˈā-trē-əm\
: an open area inside a tall building that has windows to let light in from above
: one of two sections of the heart that take in blood from the veins
plural atria \-trē-ə\ also atri·ums
Full Definition of ATRIUM
1
: the central room of a Roman house
2
plural usually atriums a : a rectangular open patio around which a house is built b : a many-storied court in a building (as a hotel) usually with a skylight
3
[New Latin, from Latin] : an anatomical cavity or passage; especially : the chamber or either of the chambers of the heart that receives blood from the veins and forces it into the ventricle or ventricles — see heart illustration
— atri·al \-trē-əl\ adjective
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Origin of ATRIUM
Latin
ATRIUM Defined for Kids
atrium
noun atri·um \ˈā-trē-əm\
Definition of ATRIUM for Kids
: the part of the heart that receives blood from the veins
Medical Dictionary
atrium
noun atri·um \ˈā-trē-əm\
plural atria \-trē-ə\ also atri·ums
Medical Definition of ATRIUM
: an anatomical cavity or passage; especially : a chamber of the heart that receives blood from the veins and forces it into a ventricle or ventricles
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