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.
The award annually recognizes outstanding technical advancement in the polyurethane industry. Alexandra Harrell, Sourcing Journal, 16 Oct. 2025 Heimplanet adds a 5,000-mm silicone-polyurethane (sil/PU5,000mm) into the formulation of its polyester wall fabric to enhance tear resistance. New Atlas, 14 Oct. 2025 Lacquer and polyurethane finishes add a layer of protection. Karen Brewer Grossman, Southern Living, 10 Oct. 2025 Raising two 10’ x 10’ sections of garage floor that sunk two inches into the ground using the polyurethane injection method would cost around $800-$1200, Smith said. Ashley Miznazi, Miami Herald, 24 Sep. 2025 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 19 Oct. 2025.

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