poly·​ure·​thane | \ ˌpä-lē-ˈyu̇r-ə-ˌthān How to pronounce polyurethane (audio) \

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 Floating phone pouches may be constructed with high-quality PVC or another high-performance material like thermoplastic polyurethane (TPU), which is a little more elastic and durable than PVC. Field & Stream, "Best Waterproof Phone Pouch: Smart Ways to Protect A Smartphone," 5 Jan. 2021 The band is made up of polycarbonate and thermoplastic polyurethane providing military-grade shock-resistance and superior protection. Liv Birdsall, USA TODAY, "15 bestselling bands to buy for your Apple Watch," 26 Dec. 2020 The Swaygo Pit Pack’s slick nylon-polyurethane shell resists tearing, and its roll-down closure forms a waterproof seal that’ll keep your stuff dry even when totally submerged. Rob Verger, Popular Science, "Going caving? Bring these essentials underground with you," 18 Dec. 2020 Moving up from the ear cup is a stainless steel headband which quickly moves into a polyurethane and kinit build. Jacob Krol, CNN Underscored, "AirPods Max review: A high price for luxury performance," 17 Dec. 2020 Under Armour’s sports mask features a water-resistant outer shell, an antimicrobial inner layer to thwart any sweaty smells between uses, and a foam layer made from polyurethane that allows air to flow through but blocks sweat and moisture. Claire Maldarelli, Popular Science, "Gifts for runners braving the cold," 5 Dec. 2020 The transparent version is made of thermoplastic polyurethane, which is more heavy-duty than the flexible plastic matte version. Medea Giordano, Wired, "The Best Black Friday Deals Under $50," 28 Nov. 2020 As part of their performance Goodbye to Gravity, a local metal band, had set off sparklers which caught on the venue’s flammable polyurethane foam. The Economist, "“Collective” follows tenacious investigative journalists in Romania," 24 Nov. 2020 Composed of three layers, the UA Sportsmask has a water-resistant polyester outer layer, a 100-percent polyurethane middle, and a soft, smooth inner layer made of 77-percent nylon and 23-percent spandex for wicking away moisture. Corey Gaskin, Ars Technica, "Mask up! How to choose and maintain the best masks for use against COVID-19," 20 Nov. 2020

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

International Scientific Vocabulary

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Time Traveler for polyurethane

Time Traveler

The first known use of polyurethane was in 1939

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Statistics for polyurethane

Last Updated

14 Jan 2021

Cite this Entry

“Polyurethane.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/polyurethane. Accessed 23 Jan. 2021.

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More Definitions for polyurethane


How to pronounce polyurethane (audio)

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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