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impeller

American  
[im-pel-er] / ɪmˈpɛl ər /

noun

  • impellers
    plural
  1. a person or thing that impels.

  2. a rotor for transmitting motion, as in a centrifugal pump, blower, turbine, or fluid coupling.


impeller British  
/ ɪmˈpɛlə /

noun

  1. the vaned rotating disc of a centrifugal pump, compressor, etc

  2. a compressor or centrifugal pump having such an impeller

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Noun Inflected Forms

Etymology

Origin of impeller

First recorded in 1675–85; impel + -er 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Parts of which household device may include the airfoil propulsion, Helmholtz cavity, and impeller?

From Slate Sep. 14, 2023

In minutes, he found the problem: A Ruffles potato chip bag had clogged the impeller.

From Washington Times Oct. 6, 2018

Specifically, the impeller that drives the fluid into the motor has turned out to be so efficient that it has put intolerable loads on the shaft and bearings that support it.

From BBC Jun. 12, 2015

Ultrasonic models use vibrating nebulizers, evaporative models blow air over a wet wick and impeller models produce mist with a rotating disc.

From Seattle Times Feb. 20, 2012

Finally he pressed the impeller of the Stoltz.

From Evil Out of Onzar by Mark Ganes

This results in low-density impellers, which “can deform and interfere with the fuel pump body” over time, regulators said, leading to an inoperative fuel pump.

From Seattle Times Dec. 21, 2023

These have been chewed up in testing along with the project's supply of impellers.

From BBC Jun. 12, 2015

The fix is very simple - a more robust shaft and bearings, but the exquisite impellers take weeks to manufacture.

From BBC Jun. 12, 2015

I have belts, hoses and impellers for Anhinga's engines and generator.

From Time Magazine Archive

At the last instant, he twisted the impellers to full pitch again, pulled out the throttle for a moment, then slammed the lever to the closed position.

From Final Weapon by Alexander Leydenfrost

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