Webster
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Webster’s Revised Unabridged Dictionary · 1913

Cupola

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. (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. A small structure standing on the top of a dome; a lantern.

3. A furnace for melting iron or other metals in large quantity, — used chiefly in foundries and steel works.

4. A revolving shot-proof turret for heavy ordnance.

5. (Anat.) The top of the spire of the cochlea of the ear.

Webster’s Revised Unabridged Dictionary, Noah Porter, editor (Springfield, Mass.: G. & C. Merriam, 1913). Public domain. Text as transcribed by MICRA, Inc., from Project Gutenberg. Changed for Deep Dive Bible: Greek, which our source spelled in Latin letters, set in Greek letters; entries of one spelling merged into one article; Greek words our source left out (shown as “?”), read from the 1898 printing, from the same plates (the Library of Congress’s copy), where the place could be found with certainty.