Cupola /(k?"p?-l?)/

Cu·po·la

Cupola

n.

pl. Cupolas ((-lz))

  1. 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. (Arch.)
  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. The top of the spire of the cochlea of the ear. (Anat.)