Osteichthyes osteectopy • ostein · · · Info · Definitions · Characters · · Osteichthyes · · Text Latin · · Script 12 · · Length Definitions · · · (noun) a class of fish having a skeleton composed of bone in addition to cartilage. Synonyms: class Osteichthyes. · · Noun Definition 1 Characters · · O latin capital letter o U+004F c latin small letter c U+0063 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 s latin small letter s U+0073 t latin small letter t U+0074 y latin small letter y U+0079