polyurethane
noun
poly·ure·thane
ˌpä-lē-ˈyu̇r-ə-ˌthān 
: 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
Adi looked down at his hiking boots with their split-grain leather and polyurethane midsoles and skidded his feet back toward the driftwood, like one of his former fourth graders called out on a pair of outmoded sneakers.
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Jonathan Miles, Harpers Magazine, 27 Jan. 2026
While the couch comes with a thin sofa topper made from polyester and polyurethane foam, so much of the density comes from the couch itself, which is definitely on the firmer side.
—Katherine McLaughlin, Architectural Digest, 22 Jan. 2026
The applications are products that typically use spandex, polyurethanes and thermoplastic elastomers, including athletic and performance clothing as well as elements of footwear, industrial elastics and car parts and accessories.
—Kate Nishimura, Sourcing Journal, 14 Jan. 2026
Use a polyurethane sealant on wood for long-term protection.
—Mary Marlowe Leverette, The Spruce, 10 Jan. 2026
See All Example Sentences for polyurethane
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Jonathan Miles, Harpers Magazine, 27 Jan. 2026
While the couch comes with a thin sofa topper made from polyester and polyurethane foam, so much of the density comes from the couch itself, which is definitely on the firmer side.
—Katherine McLaughlin, Architectural Digest, 22 Jan. 2026
The applications are products that typically use spandex, polyurethanes and thermoplastic elastomers, including athletic and performance clothing as well as elements of footwear, industrial elastics and car parts and accessories.
—Kate Nishimura, Sourcing Journal, 14 Jan. 2026
Use a polyurethane sealant on wood for long-term protection.
—Mary Marlowe Leverette, The Spruce, 10 Jan. 2026
See All Example Sentences for polyurethane
Cite this Entry
“Polyurethane.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polyurethane. Accessed 4 Feb. 2026.
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