A hand-held fan is an implement used to induce an airflow for the purpose of cooling or refreshing oneself. Any broad, flat surface waved back-and-forth will create a small airflow and therefore can be considered a rudimentary fan. But generally, purpose-made hand-held fans are shaped like a circle segment made of a thin material (such as paper or feathers) mounted to slats which revolve around a pivot so that it can be closed when not in use.
noun. Historical a device for winnowing grain; any device or machine used to set up a current of air for ventilating or cooling; specif., any flat surface moved by hand; a folding ...
Ventilation. A device to agitate or move air or other gas. The human powered Fan (implement) is a hand-held implement used by waving it back and forth. Motor powered Fans: mechanical fans such as oscillating fans, ceiling fans, blowers, etc. Centrifugal fan; Ceiling fan, also available as a floor verity in tropical countries; Computer fan, also found in a larger form in applications like radio transmitters; Engine fan - used to cool the engine's coolant when the car is stationary or moving slowlyVentilation · Names · Words · Entertainment · Places · Biology
fan 1 (f n) n. 1. A device for creating a current of air or a breeze, especially: a. A machine using an electric motor to rotate thin, rigid vanes in order to move air, as for ...
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