optical flint optical fibre • optical fusion · · · Info · Definitions · Synonyms · Characters · · optical flint · · Text Common · · Latin · · Scripts 13 · · Length 4 · · Syllables Definitions · · · (noun) optical glass of high dispersion and high refractive index. Synonyms: optical flint, flint glass. · · Noun Definition 1 Synonyms · · · flint glass · · Synonym 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 f latin small letter f U+0066 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 t latin small letter t U+0074