impeller

[ im-pel-er ]

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

/ ɪmˈpɛlə /

noun

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

Word History and Origins

Origin of impeller¹

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

Example Sentences

The Troy-Bilt Storm 2420 combines a 12-inch serrated steel auger and a 12-inch impeller, enabling it to plow through deep, heavy snowfall.

From Popular-Science

The heavy-duty components are designed with durability in mind—the cast iron auger gear box and cast iron impeller are built to last.

From Popular-Science

This WORX leaf vacuum quickly changes modes at the flip of a switch, and the integrated dual-stage metal impeller allows for an 18-to-1 reduction in leaf volume, making this a fantastic all-around choice for light- to medium-duty jobs.

From Popular-Science

Three pumps in series give therefore a lift of 720 ft. The pump consists of a central double-sided impeller 12 in.

From Project Gutenberg

The kids pried, pounded and bent the twisted impeller lift blades back into some semblance of alignment.

From Project Gutenberg

The patrol car was still three hundred yards astern when one of the bent and re-bent impeller blades let go.

From Project Gutenberg

She pressed the impeller—just as his left foot kicked in a high arc and caught the side of the barrel.

From Project Gutenberg

For instance, Zwingli asserted that God was the "author, mover, and impeller to sin."

From Project Gutenberg