cerulean blue cerulean • cerulein · · · Info · Definitions · Characters · · cerulean blue · · Text Common · · Latin · · Scripts 13 · · Length 4 · · Syllables Definitions · · · (noun) light greenish-blue pigment consisting essentially of oxides of cobalt and tin. Synonyms: cerulean blue. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 c latin small letter c U+0063 e latin small letter e U+0065 l latin small letter l U+006C n latin small letter n U+006E r latin small letter r U+0072 u latin small letter u U+0075