FAN n.
ght (Arch.), a window over a door; -- so called from the semicircular form 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…