memory foam

noun

: a dense polyurethane foam that becomes more pliable when in contact with heat

Examples of memory foam in a Sentence

Recent Examples on the Web
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Aesthetics aside, the sneakers possess notable comfort-centric designs like a cooling, memory foam insole, a heel cushion to keep your foot in place, and a shock-absorbing midsole. Izzy Baskette, PEOPLE, 12 Sep. 2025 Made with plush memory foam that contours to your neck, this isn’t your ordinary travel pillow. Chaise Sanders, Travel + Leisure, 12 Sep. 2025 There are different types of designs out there, from hypoallergenic and high-density (and contouring) memory foam mattresses that will pass any motion transfer test to innerspring mattresses with steel coils that can help with weight distribution and pressure relief. Erika Owen, Architectural Digest, 11 Sep. 2025 The memory foam conforms to your head to relieve pressure, and the cooling case helps with temperature. Nora Colomer May Earn A Commission If You Buy Through Our Referral Links. This Content Was Created By A Team That Works Independently From The Fox Newsroom., FOXNews.com, 11 Sep. 2025 See All Example Sentences for memory foam

Word History

First Known Use

1977, in the meaning defined above

Time Traveler
The first known use of memory foam was in 1977

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Cite this Entry

“Memory foam.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/memory%20foam. Accessed 16 Sep. 2025.

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