heat sink

noun

Definition of heat sink

: 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 As each heat sunk their feet into the squishy silt, eyes full of competitive fury and floaties at the ready, VNSSA counted down from 10. Morena Duwe, Billboard, "We Lost the Dirtybird Campout Spelling Bee and Other Festival Field Activity Reports," 8 Oct. 2019 Pushing these along is a new graphics architecture dubbed the Apple MPX Module, a quad-wide PCIe card that includes its own heat sink and Thunderbolt 3 connector. Samuel Axon, Ars Technica, "It’s really real: Apple unveils the all-new Mac Pro," 3 June 2019 Cooling such a massive chip requires more than just a heat sink and a fan. Mark Hachman, PCWorld, "Cerebras Systems' new deep-learning chip is as big as your keyboard, and the largest ever," 19 Aug. 2019 To that end, it's built a thermal spreader heat sink that's three times larger than in the S9+ to cool down serious graphics loads, delivering 20 percent better cooling performance. Michael Simon, PCWorld, "The Samsung Galaxy Note 9 has a better S Pen, smarter camera, and astronomical price," 9 Aug. 2018 Materials need to be added between the cells to act as a heat sink, stopping high temperatures from moving beyond an exploding cell. Loren Grush, The Verge, "NASA is prepared if a battery ever explodes in space," 17 Aug. 2018 Graphcore also had to create a custom heat sink to keep the processors cool, despite the playful designs. Chaim Gartenberg, The Verge, "Graphcore’s new AI chips are the best-looking server processors you’ll never see," 26 Nov. 2018 The temperature difference between the heat source and the heat sink has to be quite large before any reasonable amount of energy is transferred. Chris Lee, Ars Technica, "Edge on cooling from nanostructure beats physical limit," 11 Sep. 2018 The bundle linked below includes a dedicated 2.4A power supply, which should keep the Pi running at its best, as well as a couple of heat sinks to keep the whole thing cool during more involved tasks. Jeff Dunn, Ars Technica, "The Ars Technica Father’s Day gift guide," 13 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'heat sink.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of heat sink

1936, in the meaning defined above

Keep scrolling for more

Learn More about heat sink

Time Traveler for heat sink

Time Traveler

The first known use of heat sink was in 1936

See more words from the same year

Statistics for heat sink

Last Updated

17 Nov 2019

Cite this Entry

“Heat sink.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/heat%20sink. Accessed 15 December 2019.

More from Merriam-Webster on heat sink

Rhyming Dictionary: Words that rhyme with heat sink

Britannica.com: Encyclopedia article about heat sink

Comments on heat sink

What made you want to look up heat sink? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

delight or enjoyment

Get Word of the Day daily email!

Test Your Vocabulary

Great Scrabble Words—A Quiz

  • scrabble tiles that read scrabble quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Syn City

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!