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WordReference Random House Learner's Dictionary of American English © 2024vane /veɪn/USA pronunciation n. [countable]- Meteorologyweather vane.
- Mechanical Engineeringa flat blade or plate attached to a rotating cylinder or shaft, as in a turbine or windmill, that moves or is moved by steam, air, or a fluid:the vanes of a propeller.
WordReference Random House Unabridged Dictionary of American English © 2024vane (vān),USA pronunciation n. - MeteorologySee weather vane.
- Mechanical Engineeringa blade, plate, sail, etc., in the wheel of a windmill, to be moved by the air.
- Mechanical Engineeringany 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
- Aerospaceany 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.
- [Ornith.]the web of a feather. See illus. under feather.
- Nautical, Surveying, Naval Terms[Navig., Survey.]either of two fixed projections for sighting an alidade or the like.
- Sport[Archery.]feather (def. 5).
- bef. 1100; Middle English; Old English fana flag; cognate with German Fahne flag, Gothic fana segment of cloth; compare gonfanon
- Biographical Sir Henry (Sir Harry Vane), 1613–62, British statesman and author.
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