(architecture) Tracery rising from a capital or a corbel, and diverging like the folds of a fan over the surface of a vault.

plural of fan-blast

(ironworking) The blast produced by a fan, as distinguished from that produced by a blowing-engine.

(entomology) Having a fan-like arrangement of the nervures or veins of the wings.

plural of walking fan

(historical) A large hand-held fan used outdoors to protect the face from the sun.

plural of dress fan

(historical) A lady's small hand-held fan for use at parties, entertainments, and court ceremonies.

A type of fan designed to remove moisture from a room, or dust or fumes from certain environments.

plural of fan-wheel