FAN n.
rm and radiating sash bars of those windows which are set in the circular heads of arched doorways. -- Fan shell (Zoöl.), any shell of the family Pectinidæ. See Scallop, n., 1. -- Fan tracery (Arch.), the decorative tracery on the surface of fan vaulting. -- Fan vaulting (Arch.), an elaborate system of vaulting, in…
REVEAL n.
The side of an opening for a window, doorway, or the like, between the door frame or window frame and the outer surface of the wall; or, where the opening is not filled with a door, etc., the whole thickness of the wall; the jamb. [Written also revel.]