fibreglass
noun [ U ] UK (US fiberglass) uk/ˈfaɪ.bəˌɡlɑːs/ us/ˈfaɪ.bɚˌɡlæs/
（尤用于汽车、船只等构造中的）玻璃纤维，玻璃棉
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 玻璃钢船体／快艇