- a person or thing that impels.
- a rotor for transmitting motion, as in a centrifugal pump, blower, turbine, or fluid coupling.
Origin of impeller
Examples from the Web for impeller
Historical Examples of impeller
As he did, he saw Astrid's knuckles tighten around the impeller.
For instance, Zwingli asserted that God was the "author, mover, and impeller to sin."Determinism or Free-Will?
She pressed the impeller—just as his left foot kicked in a high arc and caught the side of the barrel.
- the vaned rotating disc of a centrifugal pump, compressor, etc
- a compressor or centrifugal pump having such an impeller
1680s, agent noun from impel (v.). As a machine part from 1890.