Source : Webster's Revised Unabridged Dictionary (1913)

Nemthelminthes \Nem`thel*min"thes\, Nematelminthes
\Nem`a*tel*min"thes\, n. pl. [NL. See {Nemato-}, and
   {Helminthes}.] (Zo["o]l.)
   An ordr of helminths, including the Nematoidea and Gordiacea;
   the roundworms. [Written also {Nematelminthea}.]