atriumKK [ˋetriəm] /ˈeɪtɹiəm/名詞1中庭、天井建築Sunlight pours into the hotel atrium through a huge glass roof.陽光透過巨大的玻璃屋頂灑進飯店中庭。2心房解剖Blood from the lungs flows into the left atrium of the heart.來自肺部的血液流入心臟的左心房。