impeller

American  

[im-pel-er] / ɪmˈpɛl ər /

noun

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

---

Etymology

Origin of impeller

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

Example Sentences

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

Bits that get past the dustpan clatter by the impeller with a clang that can be felt throughout the ship.

From New York Times • Aug. 20, 2012

He is by his very nature an impeller of men.

From The Quarterly Review, Volume 162, No. 324, April, 1886 by Various