heat pump

noun

: an apparatus for heating or cooling (such as a building) by transferring heat by mechanical means from or to an external reservoir (such as the ground, water, or outside air)

Examples of heat pump in a Sentence

Recent Examples on the Web
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The Commission also recommended incentives to install heat pumps, solar panels, and battery storage in residential and industrial buildings. Tristan Bove, Fortune, 24 Apr. 2026 Geothermal is four times more efficient than a boiler or furnace and twice as efficient as an air-source heat pump. Lew Sichelman, Miami Herald, 23 Apr. 2026 The mayor made the announcement at Woodside Houses in Queens, where electric heat pumps were installed as part of a pilot program in 2023. Alexa Herrera, CBS News, 22 Apr. 2026 This mechanical heartbeat allows the material to act as a heat pump without complex machinery. Mrigakshi Dixit, Interesting Engineering, 21 Apr. 2026 See All Example Sentences for heat pump

Word History

First Known Use

1894, in the meaning defined above

Time Traveler
The first known use of heat pump was in 1894

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Cite this Entry

“Heat pump.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heat%20pump. Accessed 26 Apr. 2026.

Kids Definition

heat pump

noun
: a device for heating or cooling a building by transferring heat contained in a fluid to or from the building

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