heat exchanger

noun

: a device (such as an automobile radiator) for transferring heat from one fluid to another without allowing them to mix

Examples of heat exchanger in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
These are fed through a hopper into the reactor vessel to produce a self-regulating fission reaction and are cooled by helium gas that carries off the heat to a heat exchanger to generate steam for electrical generators. New Atlas, 20 Oct. 2025 To make this approach viable for aviation, components such as fuel cells, storage systems, and heat exchangers must be adapted to the unique demands of flight. Kaif Shaikh, Interesting Engineering, 2 Oct. 2025 The vests circulate coolant through tubes to lower body temperature but require cars to be fitted with specific hardware, including pumps, a coolant reservoir, and a heat exchanger. Alex Harrington, MSNBC Newsweek, 2 Oct. 2025 And while Manchester’s climate means the roof is not used for a rooftop bar or a swimming pool, other hotels in sunnier locations don’t have this free space for heat exchangers. Mattias Goldmann, Forbes.com, 10 Sep. 2025 See All Example Sentences for heat exchanger

Word History

First Known Use

1902, in the meaning defined above

Time Traveler
The first known use of heat exchanger was in 1902

Browse Nearby Words

Cite this Entry

“Heat exchanger.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heat%20exchanger. Accessed 7 Nov. 2025.

Kids Definition

heat exchanger

noun
: a device (as an automobile radiator) for transferring heat from one fluid to another without allowing them to mix

Medical Definition

heat exchanger

noun
heat ex·​chang·​er -iks-ˌchānj-ər How to pronounce heat exchanger (audio)
: a device (as in an apparatus for extracorporeal blood circulation) for transferring heat from one fluid to another without allowing them to mix

More from Merriam-Webster on heat exchanger

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