Platyhelminthes platyhelminthes • platyhelminthic · · · Info · Definitions · Characters · · Platyhelminthes · · Text Latin · · Script 15 · · Length 5 · · Syllables Definitions · · · (noun) flatworms. Synonyms: phylum Platyhelminthes. · · Noun Definition 1 Characters · · P latin capital letter p U+0050 a latin small letter a U+0061 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E s latin small letter s U+0073 t latin small letter t U+0074 y latin small letter y U+0079