Spandrel

Also spelled �Spandril, � the roughly triangular area above and on either side of an arch, bounded by a line running horizontally through the apex of the arch, a line rising vertically from the springing of the arch, and the curved extrados, or top of the arch. When arches adjoin, the entire area between their crowns and springing line is a spandrel. If it is filled in, as is ordinarily the case, the