[ pol-ee-yoo r-uh-theyn, -yoo-reth-eyn ]
/ ˌpɒl iˈyʊər əˌθeɪn, -yʊˈrɛθ eɪn /
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.
- polyvalent allergy,
- polyvalent serum
Also pol·y·u·re·than [pol-ee-yoo r-uh-than] /ˌpɒl iˈyʊər əˌθæn/.
Origin of polyurethane
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
/ (ˌpɒlɪˈjʊərəˌθeɪn) /
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
Online Etymology Dictionary, © 2010 Douglas Harper
[ pŏl′ē-yur′ə-thān′ ]
Any of various synthetic resins used to make tough resistant coatings, adhesives, foams, and electrical insulation.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.