1 any reciprocating or rotating device that compresses a gas
2 the part of a gas turbine that compresses the air before it enters the combustion chambers
3 any muscle that causes compression of any part or structure
4 a medical instrument for holding down a part of the body
5 an electronic device for reducing the variation in signal amplitude in a transmission system Compare →
n a device for compressing a gas by accelerating it tangentially by means of bladed rotors, to increase its kinetic energy, and then diffusing it through static vanes (stators), to increase its pressure
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