'fanlight' definitions:

Definition of 'fanlight'

(from WordNet)
noun
A window above a door that is usually hinged to a horizontal crosspiece over the door [syn: transom, transom window, fanlight]
noun
A window in a roof to admit daylight [syn: skylight, fanlight]
noun
A semicircular window over a door or window; usually has sash bars like the ribs of a fan