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WordReference Random House Unabridged Dictionary of American English © 2024im•pel•ler (im pel′ər),USA pronunciation n. - a person or thing that impels.
- a rotor for transmitting motion, as in a centrifugal pump, blower, turbine, or fluid coupling.
Collins Concise English Dictionary © HarperCollins Publishers:: impeller /ɪmˈpɛlə/ n - the vaned rotating disc of a centrifugal pump, compressor, etc
im•pel /ɪmˈpɛl/USA pronunciation v. [~ + object], -pelled, -pel•ling. - to urge forward;
to force (to some action):The economic conditions impelled us.[~ + object + to + verb]Financial problems impelled the firm to cut its budget. - to impart motion to:The wheel acts to impel the shaft.
im•pel•ler, n. [countable]See -pel-. WordReference Random House Unabridged Dictionary of American English © 2024im•pel (im pel′),USA pronunciation v.t., -pelled, -pel•ling. - to drive or urge forward;
press on;
incite or constrain to action. - to drive or cause to move onward;
propel;
impart motion to.
- Latin impellere to strike against, set in motion (transitive), equivalent. to im- im-1 + pellere to strike, move (something); akin to pulse1
- late Middle English impellen 1375–1425
- 1.See corresponding entry in Unabridged actuate. See compel.
- 1.See corresponding entry in Unabridged restrain.
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