impeller

noun

im·​pel·​ler im-ˈpe-lər 

variants or less commonly impellor

1

: one that impels

2

a

: a rotor located in a conduit to impart motion to a fluid

b

: a blade of a rotor

Examples of impeller in a Sentence

Recent Examples on the Web

Once the engine is revving, the gas exhaust takes over to spin the turbo impeller. —Mark Ewing, Forbes, 16 Oct. 2024

By drawing in a small amount of air from the intake, pressurizing it using an impeller, and squirting it through the outlet, this generates a pressure imbalance and a considerable amount of thrust, which extends the full length of the cylinders. —David Szondy, New Atlas, 31 July 2024

Not so for Kawasaki, who stunned everyone with a 130,000 rpm impeller that compresses incoming air at 2.4 times over atmospheric pressure. —Peter Jackson, Robb Report, 1 Mar. 2024

The durable metal impeller and mulching system has an impressive 16:1 mulching ratio. —Rachel Ahrnsen, Better Homes & Gardens, 28 Feb. 2024

Word History

First Known Use

1685, in the meaning defined at sense 1