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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This pair also features a stretchy knit upper that hugs your feet, plus a memory foam insole for cushioning. Michelle Baricevic, Travel + Leisure, 12 June 2026 This Cushionaire pair, for example, offers an extra-wide toe box and memory foam insole. Izzy Baskette, PEOPLE, 9 June 2026 Razer Gaming Headset Deal The Razer Kraken V3 X blocks out physical strain using an ultralight 285-gram frame outfitted with breathable hybrid fabric and memory foam ear cushions. Juhi Wadia, PC Magazine, 8 June 2026 This pair from Lucky Step is catching my eye, and Project Cloud’s comfy sneakers feature a cushion-y memory foam insole. Kaitlin Clapinski, InStyle, 30 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 16 Jun. 2026.

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