agnathan Agnatha • agnathia · · · Info · Definitions · Synonyms · Characters · · agnathan · · Text Latin · · Script 8 · · Length 3 · · Syllables Definitions · · · (noun) eel-shaped vertebrate without jaws or paired appendages including the cyclostomes and some extinct forms. Synonyms: jawless vertebrate, jawless fish. · · Noun Definition 1 Synonyms · · · jawless vertebrate · · Synonym 1 jawless fish · · Synonym 2 Characters · · a latin small letter a U+0061 g latin small letter g U+0067 h latin small letter h U+0068 n latin small letter n U+006E t latin small letter t U+0074