chiton
chi.ton \'ki-t-*n, 'ki--.ta:n\ n [NL, genus name, fr. Gk chito-n tunic; of Sem origin; akin to Heb k] [Gk chito-n]utto-neth tunic 1: any of an order (Polyplacophora) of elongated bilaterally symmetrical ma rine mollusks with a dorsal shell of calcareous plates 2: the basic garment of ancient Greece worn usu. knee-length by men and ful l-length by women