Nemathelminthes

from The Collaborative International Dictionary of English v.0.48

Nemathelminthes \Nem`a*thel*min"thes\, Nematelminthes
\Nem`a*tel*min"thes\, prop. n. pl. [NL. See {Nemato-}, and
   {Helminthes}.] (Zool.)
   An order of helminths, including the {Nematoidea} and
   Gordiacea; the roundworms. [Written also {Nematelminthea}.]
   [1913 Webster]