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Impeller

noun

Definitions

Noun
  1. 1
    Something which or someone who impels.
  2. 2
    the blade of a rotor (as in the compressor of a jet engine) wordnet
  3. 3
    Something which or someone who impels.; A rotating component of a device that accelerates fluid, increasing its pressure or flowrate.

    "screw impeller"

  4. 4
    Something which or someone who impels.; A rotating component of a device that accelerates fluid, increasing its pressure or flowrate.; Especially, such a component that drives the fluid radially (outward from a center of rotation) rather than axially. (Impellers are found in devices such as pumps, water jets, washing machines, and agitated tanks.)

    "Holonym: torque converter"

Etymology

From impel + -er.

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