arrière-voussure

arrière-voussure

[′ar·ē‚er‚vü′su̇r] (building construction) An arch or vault in a thick wall carrying the thickness of the wall, especially one over a door or window frame. A relieving arch behind the face of a wall.

arrière-voussure, rear arch

arrière-voussure 1. A rear vault; an arch or vault in a thick wall carrying the thickness of the wall, esp. one over a door or window frame. 2. A relieving arch behind the face of a wall.