Supercharger definition

so͝opər-chärjər
Frequency:
A blower or compressor, usually driven by the engine, for supplying air under high pressure to the cylinders of an internal-combustion engine.
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An engine-driven compressor used in some motor vehicles and airplanes to improve power by increasing the flow of air and fuel into the cylinders: also used in airplanes to pressurize cabins and to maintain adequate air pressure in the engine at higher altitudes.
noun
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Inlet air compressor for an internal combustion engine (either Otto or Diesel cycle), normally powered from the crankshaft.
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Other Word Forms

Noun

Singular:
supercharger
Plural:
superchargers