CUPOLA

cupola. Cupola, n. a dome, arched roof, turret, bowl

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Cu″po‐la (k?″p?–l?), n.; pl. Cupolas (–l�z). [[It. cupola, LL. cupula, cuppula (cf. L. cupula little tub). fr. cupa, cuppa, cup; cf. L. cupa tub. So called on account of its resemblance to a cup turned over. See Cup, and cf. Cupule.]] 1. 1. (Arch.) A roof having a rounded form, hemispherical or nearly so; also, a ceiling having the same form. When on a large scale it is usually called dome.
2. 2. A small structure standing on the top of a dome; a lantern.
3. 3. A furnace for melting iron or other metals in large quantity, — used chiefly in foundries and steel works.
4. 4. A revolving shot-proof turret for heavy ordnance.
5. 5. (Anat.) The top of the spire of the cochlea of the ear.