Vane

Definition of Vane

Pronunciation: vān
n.1.
1.A contrivance attached to some elevated object for the purpose of showing which way the wind blows; a weathercock. It is usually a plate or strip of metal, or slip of wood, often cut into some fanciful form, and placed upon a perpendicular axis around which it moves freely.
Aye undiscreet, and changing as a vane.
- Chaucer.
2.Any flat, extended surface attached to an axis and moved by the wind; as, the vane of a windmill; hence, a similar fixture of any form moved in or by water, air, or other fluid; as, the vane of a screw propeller, a fan blower, an anemometer, etc.
3.(Zool.) The rhachis and web of a feather taken together.
4.One of the sights of a compass, quadrant, etc.
Vane of a leveling staff
(Surv.) Same as Target, 3.

Related Words

mechanical device, weather vane, weathercock, weathervane, wind tee, wind vane
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