polyurethane
Americannoun
-
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.
noun
-
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
-
Any of various synthetic resins used to make tough resistant coatings, adhesives, foams, and electrical insulation.
Etymology
Origin of polyurethane
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Blount: Spraying the structural wigs with acrylic polyurethane to keep them in place during the high-energy choreography.
From Los Angeles Times • Feb. 5, 2025
The Olympics used red cinder until 1968 and the Mexico City games, which instead featured a polyurethane "Tartan" track, so-called because 3M, which made it, also made Scotch tape.
From BBC • Jul. 22, 2024
Today's highest-performance tracks can be made using either polyurethane or rubber, says Tadhg Sullivan from Ireland's Dundrum South Dublin Athletics Club, which installed a rubber Mondo track in 2022.
From BBC • Jul. 22, 2024
To test this idea, Wu coated polyurethane devices with their adhesive and implanted them on the abdominal wall, colon, stomach, lung, or heart of rats.
From Science Daily • May 22, 2024
In the decades since their first runs, the group has witnessed changes to the sport far beyond composite skis and polyurethane boots.
From Seattle Times • Mar. 20, 2024
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.