Cū'po-lā, n.
n.; pl. cū'-PO-LĀ. [It. cupola, Fr. coupole, Sp. cupula, Late & L. Lat. cupula, cuppula, from Lat. cupa, cuppa, a tub, cask, L. Lat., a cup; so called on account of its resemblance to a cup turned over.]
Sense 1. (Arch.) A spherical or dome-like vault on the top of an edifice, usually on a tower or steeple, as of a public building.
Sense 2. The round top of a furnace, or the furnace itself.
