Rotor meaning

rōtər
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A system of airfoils, together with their hub, that rotates around a vertical axis, as on a helicopter.
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A rotating part of an electrical or mechanical device.
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An assembly of rotating horizontal airfoils, as that of a helicopter.
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Any of various rotating mechanical parts.
  • The rotating part of a motor, dynamo, etc.
  • In the distributor of a gasoline engine, the part that momentarily connects each spark plug wire to the high voltage from the coil.
  • In disc brakes, the part to which the wheel is usually mounted.
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A rotating part of a mechanical device, for example in an electric motor, generator, alternator or pump.
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The wing of a helicopter or similar aircraft.
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Origin of rotor

  • Contraction of rotator

    From American Heritage Dictionary of the English Language, 5th Edition