fiberglass Fiberglas • fiber graphite · · · Info · Definitions · Synonyms · Characters · · fiberglass · · Text Latin · · Script 10 · · Length 3 · · Syllables Definitions · · · (noun) a covering material made of glass fibers in resins. Synonyms: fibreglass. · · Noun Definition 1 Synonyms · · · fibreglass · · Synonym 1 Characters · · a latin small letter a U+0061 b latin small letter b U+0062 e latin small letter e U+0065 f latin small letter f U+0066 g latin small letter g U+0067 i latin small letter i U+0069 l latin small letter l U+006C r latin small letter r U+0072 s latin small letter s U+0073