poly·​ure·​thane | \ˌpä-lē-ˈyu̇r-ə-ˌthān \

Definition of polyurethane 

: 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

Primarily, outdoor shoes are made with EVA or polyurethane foam midsoles. Joe Jackson, Outside Online, "A Guide to Making Your Hiking Boots Last Forever," 23 May 2018 Unlike sweatbands, these headbands are made with hardened polyurethane foam found inside military helmets, while still allowing players to see the action around them. Eric Niiler, WIRED, "Protect My Head? Soccer Pros Shrug and Carry On," 15 June 2018 Marking a departure from Ballard's early focus on string marionettes, these late-career shows combine actors with puppets of all sizes and forms, constructed from such novel materials as polyurethane foam. Courant Community, "Community News For The Windham Edition," 10 July 2018 Pink Forest, for example lists styrene, acrylic, cast neoprene, paper, hair, polyurethane foam, acrylic, vinyl film, and steel among its materials. Thomas Hine, Philly.com, "Brandywine River Museum's new exhibit finds scary beauty in the realm of decay," 5 July 2018 The hoods are made of molded silicone with a soft-touch polyurethane skin that grips the sides of your device using strong built-in stretch bands, leaving enough room to manipulate touch screens. Judi Dash, latimes.com, "This gear makes your world go round, flat, darker and spacier," 2 July 2018 The logic board governs the electric motor (13) housed in the polyurethane rear wheel (14). Kevin Dupzyk, Popular Mechanics, "How an Electric Scooter Works," 1 May 2018 That chemical is scheduled to be phased out in China’s polyurethane foam sector by the end of 2025, to be replaced by even safer alternatives. Chris Buckley, New York Times, "In a High-Stakes Environmental Whodunit, Many Clues Point to China," 24 June 2018 One piece of equipment pours polyurethane into a mold that looks like a gigantic waffle maker. Alyson Krueger, New York Times, "Flip-Flops for the Greater Good," 28 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'polyurethane.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of polyurethane

1939, in the meaning defined above

History and Etymology for polyurethane

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The first known use of polyurethane was in 1939

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English Language Learners Definition of polyurethane

: a type of plastic that is used to make various products and especially to make a clear liquid that is spread on a surface (such as a wooden floor) and that becomes hard when it dries

More from Merriam-Webster on polyurethane

Nglish: Translation of polyurethane for Spanish Speakers

Britannica.com: Encyclopedia article about polyurethane

Comments on polyurethane

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to express warning or disapproval

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