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
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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. Quanta Magazine, 1 Oct. 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 There's also some clever engineering under the hood: magnesium alloy heat sinks, stainless motor housings, titanium screws, and an IP67 rating. Joe Salas august 21, New Atlas, 21 Aug. 2025 On the cold side, the team again used femtosecond laser pulses—this time on aluminum—to produce a highly effective heat sink. Neetika Walter, Interesting Engineering, 13 Aug. 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 23 Oct. 2025.

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