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
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In summer, brick, concrete, and asphalt cities are nothing short of heat sinks, baking in the high sun during the day and radiating heat back out at night.
—
Jeffrey Kluger, Time, 4 May 2026
The second test suggested that the battery cells could remain within a safe temperature range as long as there are sufficient heat sinks.
—New Atlas, 1 Apr. 2026
The world’s oceans are its largest heat sink, absorbing more than 90 percent of the excess warming that is trapped in the atmosphere.
—Molly Taft, ArsTechnica, 11 Jan. 2026
This paper-thin profile allows them to be integrated directly onto heat sinks, chassis walls, or internal components, enabling ultra-thin laptop designs that were previously impossible to cool.
—Prabhat Ranjan Mishra, Interesting Engineering, 3 Jan. 2026
See All Example Sentences for heat sink
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Jeffrey Kluger, Time, 4 May 2026
The second test suggested that the battery cells could remain within a safe temperature range as long as there are sufficient heat sinks.
—New Atlas, 1 Apr. 2026
The world’s oceans are its largest heat sink, absorbing more than 90 percent of the excess warming that is trapped in the atmosphere.
—Molly Taft, ArsTechnica, 11 Jan. 2026
This paper-thin profile allows them to be integrated directly onto heat sinks, chassis walls, or internal components, enabling ultra-thin laptop designs that were previously impossible to cool.
—Prabhat Ranjan Mishra, Interesting Engineering, 3 Jan. 2026
See All Example Sentences for heat sink
Cite this Entry
“Heat sink.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heat%20sink. Accessed 15 May. 2026.
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