atrium

noun atri·um \ ˈā-trē-əm \

Definition of atrium

plural atria play \-trē-ə\ also atriums
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 (such 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

atrial

play \-trē-əl\ adjective

Recent Examples of atrium from the Web

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Did You Know?

In an ancient Roman house, an atrium was an open central court that contained the impluvium, a basin where rainwater collected. It originally contained the hearth and functioned as the center of family life. The term later came to be used for the open front courtyard of a Christian basilica, where congregants collected before services. The atrium was revived in the 20th century in the form of glass-covered, greenery-filled multistory spaces sometimes found in shopping centers, office buildings, and large hotels.

Origin and Etymology of atrium

Latin


ATRIUM Defined for English Language Learners

atrium

noun

Definition of atrium for English Language Learners

  • : 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


ATRIUM Defined for Kids

atrium

noun atri·um \ ˈā-trē-əm \

Definition of atrium for Students

:the part of the heart that receives blood from the veins

Medical Dictionary

atrium

noun atri·um \ ˈā-trē-əm \

medical Definition of atrium

plural atria play \-trē-ə\ also atriums
: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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