nemathelminth (nemathelminth)

and n. nematode (nem'a-tōd), a. and n. [ I. a. Of or pertaining to the Nemathelminthes. Also nemathelminthic. II. n. A member of the Nemathelminthes . Nemathelminth a (nem"a-thel-min'thä), n . pl. [NL.] Same as Nemathelminthes . Nemathelminthes (nem"a-thel-min'thēz), n. pl . [NL., Vermes , including nematoid worms and certain related forms; the roundworms or threadworms. They are round or cylindric worms, sometimes extremely slender and filiform or thread-like, from le than an inch to several feet in length, found everywhere, and mostly parasitic (endoparasitic). Those that are never parasitic are generally of very minute size. Some are parasitic in the larval state, and free when adult; in others this is reversed. The body is not truly segmental, though the cuticle may be ringed. The cla is chiefly made up of the Nema to idea: it includes, however, the Acanthocephala ( Echinorhynchidœ ), and formerly the Chætognatha ( Sagitta ) were added. The term is sometimes used synonymously with Nema to idea. See cuts under Nema to idea, Acanthocephala, and Sagitta. nemathelminthic (nem"a-thel-min'thik), a. [ Nematistiidæ stiidæ (nema-tis-ti'i-dē), n. pl. [NL., τώδης, thread-like: see nematoid.] Same as nematoid. Nematode a (nem-a-to'dē-a), n. pl. [NL., Nema to idea .