windmill

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wind·mill / ˈwindˌmil/ • n. a building with sails or vanes that turn in the wind and generate power to grind grain into flour. ∎  a similar structure used to generate electricity or draw water. ∎  a propeller, esp. one used formerly on an autogiro.• v. [tr.] move (one's arms) around in a circle in a manner suggestive of the rotating sails or vanes of a windmill. ∎  [intr.] (of one's arms) move in such a way. ∎  [intr.] (of the propeller or rotor of an aircraft, or the aircraft itself) spin unpowered.PHRASES: tilt at windmillssee tilt.

windmill

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