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[nem-uh-tohd] /ˈnɛm əˌtoʊd/

any unsegmented worm of the phylum Nematoda, having an elongated, cylindrical body; a roundworm.
pertaining to the Nematoda.
any unsegmented worm of the phylum (or class) Nematoda, having a tough outer cuticle. The group includes free-living forms and disease-causing parasites, such as the hookworm and filaria Also called nematode worm, roundworm

1865, from Modern Latin Nematoda, the class or phylum name.

nematode nem·a·tode (něm’ə-tōd’)
A parasitic worm of the class Nematoda. Also called roundworm.
Any of several slender, cylindrical worms of the group Nematoda, which some scientists consider to be a class of the aschelminths and others to be a separate phylum. Most nematodes are tiny and live in enormous numbers in water, soil, plants, and animals. They have a simple structure, with a long hollow gut separated from the body wall by a fluid-filled space. Several nematodes, such as pinworm, roundworm, filaria, and hookworm, are parasites on animals and humans and cause disease. One species, Caenorhabditis elegans (usually called C. elegans), was one of the first animals to have its entire genome sequenced and is important in biological research as a model organism.


Read Also:

  • Nematodiasis

    nematodiasis nem·a·to·di·a·sis (něm’ə-tō-dī’ə-sĭs) n. Infection with nematode parasites.

  • Nematology

    [nem-uh-tol-uh-jee] /ˌnɛm əˈtɒl ə dʒi/ noun 1. the branch of zoology dealing with nematodes.

  • Nematoid

    nematoid nem·a·toid (něm’ə-toid’) adj. Relating to nematodes.

  • Nematomorph

    [nem-uh-tuh-mawrf, nuh-mat-uh-] /ˈnɛm ə təˌmɔrf, nəˈmæt ə-/ noun, Zoology. 1. any member of the phylum Nematomorpha, having a threadlike body, comprising the horsehair worms.

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