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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Today, China accounts for around 70% of global manufacturing across the six core clean technologies identified by the International Energy Agency (IEA)—EVs, solar, wind turbines, batteries, electrolyzers, and heat pumps—anchoring what is fast becoming a multitrillion-dollar market. Justin Worland, Time, 10 Feb. 2026 Now, decoupling supply chains are driving manufacturing growth in the West once more, electric vehicles and home heat pumps need to be plugged in, and the makers of AI’s large language models have ever-increasing power needs. Andrew Edgecliffe-Johnson, semafor.com, 6 Feb. 2026 Not just heat pumps, catalytic heating technology can also be combined with other heat sources, such as industrial waste heat, to support decarbonization efforts. Ameya Paleja, Interesting Engineering, 5 Feb. 2026 Another group, the Arête Glacier Initiative, is investigating the idea of refreezing Thwaites to bedrock by pumping lubricating meltwater out from its base or drawing heat away with passive heat pumps. Christian Elliott, The Atlantic, 31 Jan. 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 16 Feb. 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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