(1669) : a masonry structure that typically consists of a straight inclined bar carried on an arch and a solid pier or buttress against which it a
n 1 a buttress supporting a wall or other structure by an arch or part of an arch that transmits the thrust outwards and downwards Also called: arc
An exterior arched prop designed to resist lateral thrust in a building (e.g. the tendency of a vault to push the walls outward). ( Gothic...