atrium

古罗马住宅中中央露天庭院,或其他建筑中的类似空间

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

与其他腔室或通道相连的任何腔室(尤其是心脏的两个上腔之一)

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

顶部采光的方形大厅,一层或多层房间向此开放

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

建筑物的中央区域；开放至天空

the central area in a building; open to the sky

腔、入口或通道。

A cavity, entrance, or passage.

任何封闭的体腔或室。

Any enclosed body cavity or chamber.

心脏上方的腔室,接收来自静脉的血液并将其推入心室。

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.

肺肺泡内的微小气囊。

A microscopic air sac within a pulmonary alveolus.

花粉粒孔口内由外壁与内壁分离形成的腔,向颗粒内部扩大。

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.