Ebook wait

Fan (?), n. [AS. fann, fr. L.
vannus fan, van for winnowing grain; cf. F. van. Cf.
Van a winnowing machine, Winnow.] 1.
An instrument used for producing artificial currents of air, by
the wafting or revolving motion of a broad surface; as:
(a) An instrument for cooling the person, made
of feathers, paper, silk, etc., and often mounted on sticks all
turning about the same pivot, so as when opened to radiate from the
center and assume the figure of a section of a circle.
(b) (Mach.) Any revolving vane or vanes
used for producing currents of air, in winnowing grain, blowing a
fire, ventilation, etc., or for checking rapid motion by the
resistance of the air; a fan blower; a fan wheel.
(c) An instrument for winnowing grain, by moving
which the grain is tossed and agitated, and the chaff is separated
and blown away. (d) Something in the form
of a fan when spread, as a peacock's tail, a window, etc.
(e) A small vane or sail, used to keep the large
sails of a smock windmill always in the direction of the
wind.


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