01 n. 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.
pl.
Cupolas ((-l�z))
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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.)
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2.
A small structure standing on the top of a dome; a lantern.
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3.
A furnace for melting iron or other metals in large quantity, -- used chiefly in foundries and steel works.
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4.
A revolving shot-proof turret for heavy ordnance.
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5.
The top of the spire of the cochlea of the ear.(Anat.)