polyisoprene

American

[pol-ee-ahy-suh-preen] / ˌpɒl iˈaɪ səˌprin /

noun

Chemistry.

a thermoplastic polymer, (C 5 H8 ) n , the major constituent of natural rubber and also obtained synthetically.

polyisoprene British

/ ˌpɒlɪˈaɪsəˌpriːn /

noun

any of various polymeric forms of isoprene, occurring in rubbers

"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

Etymology

Origin of polyisoprene

First recorded in 1930–35; poly- + isoprene

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.

The polyisoprene ones are definitely worth a try, and if you’re in a committed, monogamous relationship, lambskin should be OK as well.

From Slate

Rubber Co. and Shell Chemical Corp. jointly began commercial production of polyisoprene, a man-made rubber duplicating tree-grown rubber.

From Time Magazine Archive

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023