polyisoprene

[pol-ee-ahy-suh-preen]

pol·y·i·so·prene

[pol-ee-ahy-suh-preen]
noun Chemistry.
a thermoplastic polymer, (C5H8)n, the major constituent of natural rubber and also obtained synthetically.

Origin:
1930–35; poly- + isoprene
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Polyisoprene is always a great word to know.
So is oxide. Does it mean:
the quantity of product formed by the interaction of two or more substances, generally expressed as a percentage
a compound in which oxygen is bonded to one or more electropositive atoms
Collins
World English Dictionary
polyisoprene (ˌpɒlɪˈaɪsəˌpriːn)
 
n
any of various polymeric forms of isoprene, occurring in rubbers

Collins English Dictionary - Complete & Unabridged 10th Edition
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