glass fiber glass-faced • glass fibre · · · Info · Definitions · Synonyms · Characters · · glass fiber · · Text Common · · Latin · · Scripts 11 · · Length 3 · · Syllables Definitions · · · (noun) a very thin fiber made of glass that functions as a waveguide for light; used in bundles to transmit images. Synonyms: optical fiber, glass fiber, optical fibre, glass fibre. · · Noun Definition 1 Synonyms · · · optical fiber · · Synonym 1 optical fibre · · Synonym 2 glass fibre · · Synonym 3 Characters · · space U+0020 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