atrium

If you're in the atrium of a building, you're in a large central space, often one that's open and airy. You might arrange to meet a friend in the museum's atrium because of its central location and open feel.

Often a key feature in a modern building, an atrium is usually spacious, often several stories high with windows that opens up to the sky to let in natural light. The atrium serves as a welcoming central area, with other rooms leading off of the space. Atrium can also refer to a chamber that's linked to other chambers or spaces. In your heart, the right atrium receives deoxygenated blood, while the left atrium receives oxygenated blood from the pulmonary vein.

PRIMARY MEANINGS OF: atrium

1
n
any chamber that is connected to other chambers or passageways (especially one of the two upper chambers of the heart)
2
n
the central area in a building; open to the sky
FULL DEFINITIONS OF: atrium
1

n any chamber that is connected to other chambers or passageways (especially one of the two upper chambers of the heart)

Types:
atrium cordis, atrium of the heart
the upper chamber of each half of the heart
atrium dextrum, right atrium, right atrium of the heart
the right upper chamber of the heart that receives blood from the venae cavae and coronary sinus
atrium sinistrum, left atrium, left atrium of the heart
the left upper chamber of the heart that receives blood from the pulmonary veins
Type of:
chamber
an enclosed volume in the body
2

n the central area in a building; open to the sky

Type of:
court, courtyard
an area wholly or partly surrounded by walls or buildings
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