ATRIUM

atrium

(noun) the central area in a building; open to the sky

atrium

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

Source: WordNet® 3.1

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Etymology

Noun

atrium (plural atria or atriums)

(architecture) A central room or space in ancient Roman homes, open to the sky in the middle; a similar space in other buildings.

(architecture) A square hall lit by daylight from above, into which rooms open at one or more levels.

(anatomy) A cavity, entrance, or passage.

(anatomy) One of two upper chambers of the heart.

(biology) Any enclosed sexine and nexine layers, widening toward the interior of the grain.

Synonyms

• (room in Roman homes): cavaedium

Meronyms

• (chamber of the heart): left atrium, right atrium

Holonyms

• (chamber of the heart): heart

Anagrams

• Timaru

Source: Wiktionary

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A"tri*um, n.; pl. Atria. Etym: [L., the fore court of a Roman house.]

1. (Arch.) (a) A square hall lighted from above, into which rooms open at one or more levels. (b) 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.

2. (Anat.)

Definition: The main part of either auricle of the heart as distinct from the auricular appendix. Also, the whole articular portion of the heart.

3. (Zoöl.)

Definition: 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 Unabridged Dictionary 1913 Edition

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