DICT.TW Dictionary Taiwan

 Cu·po·la n.; pl. Cupolas
 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.
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