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A dome-shaped vault, where the ribs or groins are semicircular, causing the center of the vaulted bay to rise higher than the side arches.See also: Vault
coved vault, cloistered arch, cloistered vault
A vault, 1 composed of four quarter-cylindrical surfaces or coves, meeting in vertical diagonal planes, the axial sections of the vault being arched, and the horizontal courses diminishing in length from spring to crown. (See illustration p. 272.)