Definition of polyphenylene in English:

polyphenylene

Pronunciation /ˌpɒlɪˈfɛnɪliːn/

noun

Chemistry
  • A polymer in which the repeating unit is or contains the para -phenylene group. Frequently attributive, especially in "polyphenylene oxide" noun a thermoplastic polymer whose repeating unit is the group — p -C₆ H₄ ·O—, which is used as a moulding material (abbreviated PPO).

Origin

1920s; earliest use found in Journal of the American Chemical Society. From poly- + phenylene.