Isoetaceae isoerucic • Isoetales · · · Info · Definitions · Characters · · Isoetaceae · · Text Latin · · Script 10 · · Length Definitions · · · (noun) quillworts; coextensive with the genus Isoetes. Synonyms: family Isoetaceae, quillwort family. · · Noun Definition 1 Characters · · I latin capital letter i U+0049 a latin small letter a U+0061 c latin small letter c U+0063 e latin small letter e U+0065 o latin small letter o U+006F s latin small letter s U+0073 t latin small letter t U+0074