GLOSSARY OF TECHNICAL WORDS.
Abacus.—The upper portion of the capital of a column, upon which the weight to be carried rests.
Aisle (Lat. ala).—The side subdivision in a church; occasionally all the subdivisions, including the nave, are called aisles.
Apse.—A semicircular or polygonal termination to, or projection from, a church or other public building.
Arcade.—A range of arches, supported on piers or columns.... more...