/ ˌpɒliˈstaɪriːn; NAmE ˌpɑːl-/ (also Styrofoam ™ especially in NAmE ) noun
[ U ] a very light soft plastic that is usually white, used especially for making containers that prevent heat loss :
polystyrene cups
/ ˌpɒliˈstaɪriːn; NAmE ˌpɑːl-/ (also Styrofoam ™ especially in NAmE ) noun
[ U ] a very light soft plastic that is usually white, used especially for making containers that prevent heat loss :
polystyrene cups
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005