1 a a rounded dome forming a roof or ceiling. b a small rounded dome adorning a roof.
2 a revolving dome protecting mounted guns on a warship or in a fort.
3 (in full cupola-furnace) a furnace for melting metals.
Derivatives:
cupolaed adj.
Etymology: It. f. LL cupula dimin. of cupa cask
Useful english dictionary. 2012.