polyurethane

noun

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

: 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

Little polyurethane nodes are cast in the shape of Cs on the medial side and no. — Ian Servantes, Footwear News, 17 June 2026

An integration layer, typically thermoplastic polyurethane, meanwhile, ensures adhesion. — Chris Young, Interesting Engineering, 16 June 2026

In addition to slip-on clogs and sandals, Birkenstock also produces stylish and supportive sneakers like the Bend Low sneakers, which boast cork and polyurethane (PU) midsoles that deliver top-tier shock absorption. — Sophie Dodd, Travel + Leisure, 12 June 2026

The Joybird Carin armless love seat delivers with its two-pound high-density polyurethane foam core bench cushion seat. — Yelena Moroz Alpert, Architectural Digest, 4 June 2026

Word History

Etymology

International Scientific Vocabulary

First Known Use

1939, in the meaning defined above

Rhymes for polyurethane

• cyclopropane
• legerdemain
• nitromethane
• ultramontane
• abstain
• airplane
• alkane
• arcane
• arraign
• attain
• backplane
• betaine