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。
1.1
- the revolving openable hemispherical roof of an observatory（天文台的可打开和旋转的）半球状屋顶。
1.2
- 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：
2.1
- 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。
2.2
- 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。
2.3
- Geology a rounded uplifted landform or underground structure【地质】穹地, 圆丘, 穹丘。
2.4
- 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。
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。
派生词
dome-like
adjective词源
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.