crown glass crown gear • crown gold · · · Info · Definitions · Synonyms · Characters · · crown glass · · Text Common · · Latin · · Scripts 11 · · Length 2 · · Syllables Definitions · · · (noun) a glass blown into a globe which is later flattened and spun to form a disk. Synonyms: crown glass. · · Noun Definition 1 (noun) optical glass of low dispersion and low refractive index. Synonyms: optical crown, crown glass, optical crown glass. · · Noun Definition 2 Synonyms · · · optical crown · · Synonym 1 optical crown glass · · Synonym 2 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 g latin small letter g U+0067 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 w latin small letter w U+0077