vane
1 Americannoun
-
a blade, plate, sail, etc., in the wheel of a windmill, to be moved by the air.
-
any of a number of blades or plates attached radially to a rotating drum or cylinder, as in a turbine or pump, that move or are moved by a fluid, as steam, water, hot gases, or air.
-
a person who is readily changeable or fickle.
-
Aerospace.
-
any fixed or movable plane surface on the outside of a rocket providing directional control while the rocket is within the atmosphere.
-
a similar plane surface located in the exhaust jet of a reaction engine, providing directional control while the engine is firing.
-
-
Ornithology. the web of a feather.
-
Navigation, Surveying. either of two fixed projections for sighting an alidade or the like.
-
Archery. feather.
noun
noun
-
Also called: weather vane. wind vane. a flat plate or blade of metal mounted on a vertical axis in an exposed position to indicate wind direction
-
any one of the flat blades or sails forming part of the wheel of a windmill
-
any flat or shaped plate used to direct fluid flow, esp a stator blade in a turbine, etc
-
a fin or plate fitted to a projectile or missile to provide stabilization or guidance
-
ornithol the flat part of a feather, consisting of two rows of barbs on either side of the shaft
-
surveying
-
a sight on a quadrant or compass
-
the movable marker on a levelling staff
-
noun
Other Word Forms
- multivane adjective
- vaned adjective
- vaneless adjective
Etymology
Origin of vane
before 1100; Middle English; Old English fana flag; cognate with German Fahne flag, Gothic fana segment of cloth; gonfanon
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
“Weather vanes don’t have names,” Constantin said, kicking at the ground.
From Literature
When throngs of visitors move through the show, which started Nov. 8, they’ll create air currents, stirring the mobiles to move in a slow ballet of weather vanes.
From Seattle Times
The blades can move to change their pitch and adjust the air flow, as can a set of fixed vanes just behind the fan.
From Seattle Times
A museum should not change directions like a weather vane but give us the reassurance that some things are timeless and provide us with the history and progression of art.
From Los Angeles Times
We can smell mulch, feel the vanes of feathers, bump into doors and taste peppermints.
From New York Times
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.