Definition of polystyrene in English:


Line breaks: poly|styr¦ene
Pronunciation: /ˌpɒlɪˈstʌɪriːn


[mass noun]
  • A synthetic resin which is a polymer of styrene, used chiefly as lightweight rigid foams and films: these plaques are moulded in black polystyrene [as modifier]: a polystyrene cup
    More example sentences
    • The polymer polystyrene contains the phenyl group as part of its repeat unit.
    • The process uses a polymer formed through a chemical bonding of polystyrene and polymethyl methacrylate.
    • All polystyrene and polyurethanes are combustible regardless of grade.

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Pronunciation: kərf
a slit made by cutting with a saw