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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The pillow is filled with shredded memory foam gel that pulls heat away from your head, neck, and shoulders to prevent overheating. Sian Babish, PEOPLE, 29 May 2026 They're built for deep focus, and come with an exceptional 50 hours of wireless playtime (ANC on), seamless Google Fast Pair, and comfortable memory foam earpads. Juhi Wadia, PC Magazine, 26 May 2026 This orthopedic dog bed is made with memory foam and cooling gel. Jessica Moore, USA Today, 25 May 2026 Anderson says open-cell memory foam and a cool-to-the-touch cover help combat heat retention without losing shape, which translates to consistent airflow and support all night long. V Brand Stories, Forbes.com, 22 May 2026 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 3 Jun. 2026.

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