Meaning of “expanded polystyrene” in the English Dictionary

british dictionary

"expanded polystyrene" in British English

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expanded polystyrenenoun [ U ]

uk /ɪkˌspæn.dɪd pɒl.ɪˈstaɪ.riːn/ us /ɪkˌspæn.dɪd pɑː.lɪˈstaɪ.riːn/

(Definition of “expanded polystyrene” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)