Xanthophyceae xanthophose • xanthophyll · · · Info · Definitions · Characters · · Xanthophyceae · · Text Latin · · Script 13 · · Length Definitions · · · (noun) yellow-green algae. Synonyms: class Xanthophyceae. · · Noun Definition 1 Characters · · X latin capital letter x U+0058 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 h latin small letter h U+0068 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 y latin small letter y U+0079