polystyrene
noun/ˌpɒliˈstaɪriːn/
/ˌpɑːliˈstaɪriːn/
(also Styrofoam™ especially in North American English)
[uncountable]- a very light soft plastic that is usually white, used especially for making containers that prevent heat loss
- polystyrene cups
Oxford Collocations DictionaryPolystyrene is used before these nouns:- cup
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polystyrene