heat sink

noun

: a substance or device that absorbs or dissipates especially unwanted heat (as from a process or an electronic device)

Examples of heat sink 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.
The safest way to do this is to use a heat sink such as a jug filled with hot water or stones warmed in the sun. Kim Toscano, Southern Living, 11 Dec. 2025 Their findings show that space can serve as a practical heat sink for nighttime power generation. Aamir Khollam, Interesting Engineering, 13 Nov. 2025 All that’s needed, the researchers say, is to connect a quantum system to a second system that can store information about it, and to a heat sink: a body that’s able to absorb a lot of energy. Philip Ball, Wired News, 2 Nov. 2025 Thermoelectric materials flex and create pulses inside the slim modules, pushing air through a heat sink noiselessly, with no spinning parts or fan bearings that are prone to fail over time. John Burek, PC Magazine, 24 Sep. 2025 See All Example Sentences for heat sink

Word History

First Known Use

1936, in the meaning defined above

Time Traveler
The first known use of heat sink was in 1936

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Cite this Entry

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

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