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English definition of “fibreglass”

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fibreglass

noun [U] uk UK ( US fiberglass)   /ˈfaɪ.bəˌɡlɑːs/ us    /-bɚˌɡlæs/
a strong, light material made by twisting together small threads of glass and plastic, used especially for structures such as cars and boats: a fibreglass hull/speedboat
(Definition of fibreglass from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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