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heat pump

noun

  1. a device that uses a compressible refrigerant to transfer heat from one body, as the ground, air, or water, to another body, as a building, with the process being reversible.

heat pump

noun

  1. a device, as used in a refrigerator, for extracting heat from a source and delivering it elsewhere at a much higher temperature

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Word History and Origins

Origin of heat pump1

First recorded in 1890–95

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