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[pol-ee-yoo r-uh-theyn, -yoo-reth-eyn] /ˌpɒl iˈyʊər əˌθeɪn, -yʊˈrɛθ eɪn/
noun, Chemistry
a thermoplastic polymer containing the group NHCOO: used for padding and insulation in furniture, clothing, and packaging, and in the manufacture of resins for adhesives, elastomers, and fillers.
Also, polyurethan
[pol-ee-yoo r-uh-than] /ˌpɒl iˈyʊər əˌθæn/ (Show IPA)
Origin of polyurethane
1940-45; poly- + urethane Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for polyurethane


a class of synthetic materials made by copolymerizing an isocyanate and a polyhydric alcohol and commonly used as a foam (polyurethane foam) for insulation and packing, as fibres and hard inert coatings, and in a flexible form (polyurethane rubber) for diaphragms and seals
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for polyurethane

1944, from polymer + urethane.

Online Etymology Dictionary, © 2010 Douglas Harper
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polyurethane in Science
Any of various synthetic resins used to make tough resistant coatings, adhesives, foams, and electrical insulation.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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