impeller








noun

  1. a person or thing that impels.
  2. a rotor for transmitting motion, as in a centrifugal pump, blower, turbine, or fluid coupling.

noun

  1. the vaned rotating disc of a centrifugal pump, compressor, etc
  2. a compressor or centrifugal pump having such an impeller
n.

1680s, agent noun from impel (v.). As a machine part from 1890.

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