impeller

Plural: impellers

Noun

• A device or part that drives or propels fluids or objects.
• the blade of a rotor (as in the compressor of a jet engine)
• Something which or someone who impels.
• Something which or someone who impels.
• A rotating component of a device that accelerates fluid, increasing its pressure or flowrate.
• Something which or someone who impels.
• A rotating component of a device that accelerates fluid, increasing its pressure or flowrate.
• Especially, such a component that drives the fluid radially (outward from a center of rotation) rather than axially. (Impellers are found in devices such as pumps, water jets, washing machines, and agitated tanks.)

Examples

• A strong opening word acts as an impeller, setting the pace for the entire Scrabble game.
• screw impeller

Related Words

expel, expeller, impel