Meaning of “Styrofoam” in the English Dictionary

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

"Styrofoam" in American English

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Styrofoamnoun [ U ]

us /ˈstɑɪ·rəˌfoʊm/ trademark

a brand name for a light, usually white plastic used to make containers that prevent foods and liquids from changing temperature or to protect delicate objects inside containers:

a Styrofoam cup/cooler
Styrofoam packing materials

(Definition of “Styrofoam” from the Cambridge Academic Content Dictionary © Cambridge University Press)

"Styrofoam" in Business English

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Styrofoamnoun [ U ]

uk us

US trademark for →  polystyrene

(Definition of “Styrofoam” from the Cambridge Business English Dictionary © Cambridge University Press)