octosyllable octosyllabic • octovalent · · · Info · Definitions · Characters · · octosyllable · · Text Latin · · Script 12 · · Length Definitions · · · (noun) a verse line having eight syllables or a poem of octosyllabic lines. · · Noun Definition 1 Characters · · 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 o latin small letter o U+006F s latin small letter s U+0073 t latin small letter t U+0074 y latin small letter y U+0079