polyisoprene

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

Origin of polyisoprene

First recorded in 1930–35; poly- + isoprene
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British Dictionary definitions for polyisoprene

polyisoprene

noun
  1. any of various polymeric forms of isoprene, occurring in rubbers
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