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.

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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

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Etymology

Origin of impeller

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

Example Sentences

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

The company says the impeller, the rotating part of the pump, could be defective.

From Washington Post

The company says the impeller, which is the rotating part of the pump, could be defective.

From Seattle Times

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

From Washington Times

A story about all the parts you’d be likely to find in a dishwasher, so you could identify which component wasn’t up to snuff: “curved blade for water distribution,” “impeller,” “door switch timer,” “measuring coil.”

From The Wall Street Journal