noun[ U or C ]UK(US glass fiber)uk/ˌɡlɑːs ˈfaɪ.bər/us/ˌɡlæs ˈfaɪ.bɚ/
（尤用于汽车、船只等构造中的）玻璃纤维
a strong, light material made by twisting together small threads of glass and plastic, used especially for structures such as cars and boats, or one of these small threads