◙ noun 1. a rounded vault forming the roof of a building or structure, typically with a circular base • 穹顶，圆屋顶 »the dome of St Paul's Cathedral. 圣保罗大教堂的穹顶。 the revolving openable hemispherical roof of an observatory • （天文台的可打开和旋转的）半球状屋顶 [in names] [N. Amer.] a sports stadium with a domed roof • [北美] 有穹顶的体育馆 2. a thing shaped like such a roof, in particular • 穹状物，尤指 the rounded summit of a hill or mountain • 山的圆顶 »the great dome of Mont Blanc. 布朗峰的大圆顶。 a natural vault or canopy, such as that of the sky or trees • （天空或树等天然形成的）苍穹；林冠 »the dome of the sky. 天幕穹顶。 [Geology] a rounded uplifted landform or underground structure • [地质] 穹地，圆丘，穹丘 [informal] the top of the head • [非正式] 头顶 »her Mohican projected from her shaved dome. 她的莫希干发型从她剃光的头顶突出来。 3. (poetic/literary)a stately building • [诗/文] 雄伟的建筑物 ◙ verb 1. [no obj.] [often as noun doming] (of stratified rock or a surface) become rounded in formation;swell • （分层的岩石或表面）变圆；膨胀
【派生】
♦ dome-like adjective
【语源】
1. early 16th cent. (in sense 3): from French dôme, from Italian duomo 'cathedral, dome', from Latin domus; 'house'. Sense 3 derives directly from Latin domus