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atrium 音標拼音: ['etriəm] n. 中庭,心房 中庭,心房 atrium n 1: any chamber that is connected to other chambers or passageways ( especially one of the two upper chambers of the heart) 2: the central area in a building; open to the skyAtrium \ A" tri* um\, n.; pl. { Atria}. [ 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. [ 1913 Webster] 2. ( Anat.) The main part of either auricle of the heart as distinct from the auricular appendix. Also, the whole articular portion of the heart. [ 1913 Webster] 3. ( Zool.) A cavity in ascidians into which the intestine and generative ducts open, and which also receives the water from the gills. See { Ascidioidea}. [ 1913 Webster] 4. ( Anat.) A cavity, entrance, or passage; as, the atrium, or atrial cavity, in the body wall of the amphioxus; an atrium of the infundibula of the lungs, etc. [ Webster 1913 Suppl.]
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