Rear vault

rear vault
Vault of the internal hood of a doorway or window to which a splay has been given on the reveal, sometimes the vaulting surface is terminated by a small rib known as the scoinson rib, ...

Rear vault - The small vaulted space between the glass of a window and the inner face of the wall, when the wall is tick and there is a deep splay.
Tewkesbury Abbey choir vault
Redan - See Ravelin.

See also: Tracery, Vault, Arches, Cathedral, Cathedra