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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These ankle boots have a plush, faux-fur lining, memory foam footbed, and modern design. Jeaneen Russell, People.com, 7 Aug. 2025 For those without one, a fresh coupon will be available at the door The company added that the first 25 customers who make a purchase will receive The Beyond Bed, described as a premium 10-inch memory foam queen-size mattress regularly valued at $226.99. Diana Leyva, The Tennessean, 7 Aug. 2025 The company added that the first 25 customers who make a purchase will receive The Beyond Bed, described as a premium 10-inch memory foam queen-size mattress regularly valued at $226.99. Jonathan Limehouse, USA Today, 5 Aug. 2025 This mattress also does a fantastic job of alleviating back pain through the top memory foam layer. Audrey Lee, Architectural Digest, 1 Aug. 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 19 Aug. 2025.

Last Updated: - Updated example sentences
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