atrium

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Contents 1 English 1.1 Etymology 1.2 Noun 1.2.1 Synonyms 1.2.2 Translations 1.2.3 Derived terms 2 Finnish 2.1 Noun 2.1.1 Declension 3 Latin 3.1 Etymology 3.2 Pronunciation 3.3 Noun 3.3.1 Inflection 3.3.2 Derived terms 3.4 See also

[edit] English

[edit] Etymology

From Latin ātrium (entry hall)

[edit] Noun

atrium (plural atria or atriums)

1. (architecture) A central room or space in ancient Roman homes, open to the sky in the middle; a similar space in other buildings.
2. (architecture) A square hall lit by daylight from above, into which rooms open at one or more levels.
3. (anatomy) Any enclosed body cavity or chamber
4. (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.
5. (anatomy) A microscopic air sac within a pulmonary alveolus.
6. (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.
   • 1965, Janet Kircher Warter, Palynology of a Lignite of Lower Eocene (Wilcox) Age from Kemper County^[1], page 52:

     Nexine 0.5μ thick, separating from the sexine about 5μ from the pore and forming a deep, well-defined atrium.

[edit] Synonyms

• (room in Roman homes): cavaedium

[edit] Translations

[edit] Derived terms

• atrial
• atriate

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[edit] Finnish

[edit] Noun

atrium

1. atrium

[edit] Declension

Declension of atrium (type risti) singular plural nominative atrium atriumit genitive atriumin atriumien partitive atriumia atriumeja accusative atrium atriumin atriumit inessive atriumissa atriumeissa elative atriumista atriumeista illative atriumiin atriumeihin adessive atriumilla atriumeilla ablative atriumilta atriumeilta allative atriumille atriumeille essive atriumina atriumeina translative atriumiksi atriumeiksi instructive – atriumein abessive atriumitta atriumeitta comitative – atriumeineen

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[edit] Latin

[edit] Etymology

From Etruscan.

[edit] Pronunciation

• (Classical) IPA: /ˈaː.tri.um/

[edit] Noun

ātrium (genitive ātriī); n, second declension

1. a welcoming room in a Roman villa; reception hall
2. a hall, court in a temple

[edit] Inflection

Number	Singular	Plural
nominative	ātrium	ātria
genitive	ātriī	ātriōrum
dative	ātriō	ātriīs
accusative	ātrium	ātria
ablative	ātriō	ātriīs
vocative	ātrium	ātria

[edit] Derived terms

• ātriēnsis
• ātriōlum

[edit] See also

• vestibulum