polyurethane

noun

poly·​ure·​thane ˌpä-lē-ˈyu̇r-ə-ˌthān How to pronounce polyurethane (audio)
: any of various polymers that contain NHCOO linkages and are used especially in flexible and rigid foams, elastomers, and resins (as for coatings)

Examples of polyurethane in a Sentence

The floor will need two coats of polyurethane.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Each model comes with an optional slab of polyurethane foam padding. Ben Coxworth, New Atlas, 26 Apr. 2025 The wagon can’t navigate loose sand with just the stock polyurethane foam tires—you’ll need to purchase Veer’s beach wheel kit ($250) for that. Jenny Wiegand, Outside Online, 25 Apr. 2025 Gater also coated the inside of the cabinet with polyurethane to seal the untreated wood and cut a hole in the side of the cabinet with a jigsaw so her cat could enter and exit the litter box holder. Claire Hoppe Norgaard, Better Homes & Gardens, 7 Feb. 2025 Patent leather, which usually gets its signature shine from a polyurethane or acrylic coating. Christina Pérez, Vogue, 21 Dec. 2024 See All Example Sentences for polyurethane

Word History

Etymology

International Scientific Vocabulary

First Known Use

1939, in the meaning defined above

Time Traveler
The first known use of polyurethane was in 1939

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Cite this Entry

“Polyurethane.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polyurethane. Accessed 3 May. 2025.

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