Vallisneria Valliscaulian • Vallisneriaceae · · · Info · Definitions · Characters · · Vallisneria · · Text Latin · · Script 11 · · Length Definitions · · · (noun) eelgrass; eel grass. Synonyms: genus Vallisneria. · · Noun Definition 1 Characters · · V latin capital letter v U+0056 a latin small letter a U+0061 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E r latin small letter r U+0072 s latin small letter s U+0073