Definition of polystyrene in English:


Syllabification: pol·y·sty·rene
Pronunciation: /ˌpäliˈstīrēn


  • A synthetic resin that is a polymer of styrene, used chiefly as lightweight rigid foams and films.
    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: ˌastrəˈgāSHən
(in science fiction) navigation in outer space