| Voussoir (n.) One of the wedgelike stones of which an arch is composed. Thesaurus Entries Easter sepulcher, ambry, arcade, arcature, arch, arched roof, archway, baptistery, blindstory, camber, ceilinged roof, chancel, choir, cloisters, concameration, concha, confessional, confessionary, cove, crypt, cupola, diaconicon, diaconicum, dome, geodesic dome, igloo, keystone, nave, ogive, porch, presbytery, rood loft, rood stair, rood tower, sacrarium, sacristy, skewback, span, transept, triforium, vault, vaulting, vestry, voussoir |