- Architecture.
- A vaulted roof or ceiling.
- A small dome set on a circular or polygonal base or resting on pillars.
- A domelike structure surmounting a roof or dome, often used as a lookout or to admit light and air.
- A cylindrical shaft type of blast furnace used for remelting metals, usually iron, before casting.
- A small rounded and domed structure, as for observation, on a tracked, armored vehicle.
[Italian, from Late Latin cūpula, diminutive of Latin cūpa, tub.]
cupolaed cu'po·laed (-ləd) adj.






