Definition of Nemathelminthes
1. n. pl. An ordr of helminths, including the Nematoidea and Gordiacea; the roundworms.
Medical Definition of Nemathelminthes
1. Formerly considered a phylum to incorporate the pseudocelomate organisms, which now are divided into the distinct phyla Acanthocephala, Entoprocta, Rotifera, Gastrotricha, Kinorhyncha, Nematoda, and Nematomorpha. Origin: nemat-+ G. Helmins, helminthos, worm (05 Mar 2000)
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