Hirudinea hirudinea • hirudinean · · · Info · Definitions · Characters · · Hirudinea · · Text Latin · · Script 9 · · Length 4 · · Syllables Definitions · · · (noun) hermaphroditic aquatic or terrestrial or parasitic annelids. Synonyms: class Hirudinea. · · Noun Definition 1 Characters · · H latin capital letter h U+0048 a latin small letter a U+0061 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 n latin small letter n U+006E r latin small letter r U+0072 u latin small letter u U+0075