| Triforium (n.) The gallery or open space between the vaulting and the roof of the aisles of a church, often forming a rich arcade in the interior of the church, above the nave arches and below the clearstory windows. 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 |