Definition of fibreglass noun from the Oxford Advanced Learner's Dictionary



(especially US English fiberglass) noun
BrE BrE//ˈfaɪbəɡlɑːs//
; NAmE NAmE//ˈfaɪbərɡlæs//
(British English also glass fibre) (also US English glass fiber) [uncountable] Materials and properties
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a strong light material made from glass fibres and plastic, used for making boats, etc. a fibreglass racing yacht See related entries: Materials and properties