DictionarydomeRounded structure
noun / verb

dome

DOHM/dəʊm/

A rounded structure forming a roof or cap.

A smooth dome forms the roof of the circular building.

A simple circular building topped by a clearly hemispherical roof, shown from a slightly elevated three-quarter view so the dome's rounded volume and architectural function are immediately visible.
Etymology

The word for a house or housetop narrowed to a particular roof shape. The rounded cupolas characteristic of Italian cathedrals helped establish the English architectural meaning.

In context

HISTORY7:58
the wall is coming in like this, they're building it up more and more narrowly. So it might have come to a sort of dome shape on top.
Lost Worlds: The Pagans Revealed - Full Episode (S1, E13) | History

More examples

  • A glass dome covers the cake on the counter.
  • The museum has a high, domed ceiling.
  • The dough domes above the rim of the pan.

Forms

dome · domes · domed · doming

Similar words

cupola
Usually a small rounded structure perched on a larger roof.
vault
An arched roof or ceiling, not necessarily hemispherical.