Pronunciation: (vān), [key]
1. See weather vane.
2. a blade, plate, sail, etc., in the wheel of a windmill, to be moved by the air.
3. 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.
4. a person who is readily changeable or fickle.
5. Aerospace.
a. any fixed or movable plane surface on the outside of a rocket providing directional control while the rocket is within the atmosphere.
b. a similar plane surface located in the exhaust jet of a reaction engine, providing directional control while the engine is firing.
6. Ornith.the web of a feather. See illus. under feather.
7. Navig., Survey.either of two fixed projections for sighting an alidade or the like.
8. Archery.feather (def. 5).


Pronunciation: (vān), [key]
Sir Henry (Sir Harry Vane), 1613–62, British statesman and author.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

Vandyke collarVänern
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