atrium

Significado

  1. A central room or space in ancient Roman homes, open to the sky in the middle; a similar space in other buildings.
  2. A square hall lit by daylight from above, into which rooms open at one or more levels.
  3. A cavity, entrance, or passage.
  4. Any enclosed body cavity or chamber.
  5. 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.
  6. A microscopic air sac within a pulmonary alveolus.
  7. 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.

Frecuencia

32k
Con guión como
a‧tri‧um
Pronunciado como (IPA)
/ˈeɪ.tɹi.əm/
Etimología

From Latin ātrium (“entry hall”), from Etruscan.

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