A common name for any roundworm of the phylum Nematoda.

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nem·a·tode 'nem-ə-.tōd adj of or relating to the phylum Nematoda
nematode n any worm of the phylum Nematoda

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any one of a large group of worms having an unsegmented cylindrical body, tapering at both ends. This distinguishes nematodes from other helminth. Nematodes occur either as free-living forms in the sea, fresh water, and soil or as parasites of plants, animals, and humans. hookworm and threadworm infest the alimentary canal. filaria are found in the lymphatic tissues. The guinea worm and Onchocerca affect connective tissue. Some nematodes (e.g. threadworms) are transmitted from host to host by the ingestion of eggs; others (e.g. Wuchereria) by the bite of a bloodsucking insect.

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nem·a·tode (nemґə-tōd) any member of the class Nematoda; called also roundworm or round worm and eelworm or eel worm.

Medical dictionary. 2011.

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Look at other dictionaries:

  • nematode — nem a*tode, a. (Zo[ o]l.) Same as {Nematoid}. [1913 Webster] …   The Collaborative International Dictionary of English

  • nematode — em a*tode, n. (Zo[ o]l.) Any worm of the phylum Nematoda; a roundworm; they are unsegmented worms having a cylindrical elongated body. They may live freely in soil or water, or as parasites in plants or animals. [PJC] …   The Collaborative International Dictionary of English

  • nématode — ● nématode nom masculin (grec nêmatôdês, semblable à des fils) Ver némathelminthe cylindrique ou effilé, aquatique ou parasite, tel que l ascaris. (Les nématodes forment un sous embranchement.) …   Encyclopédie Universelle

  • nematode — NEMATÓDE (zool.) Clasă de viermi filiformi paraziţi, care au în partea din faţă o gură aparentă; (la sg.) vierme din această clasă. [sg. nematod, var. nematozi / < fr. nématodes, cf. gr. nema – filament, eidos – formă] …   Dicționar Român

  • nematode — (n.) 1865, from Mod.L. NEMATODA (Cf. Nematoda), the class or phylum name …   Etymology dictionary

  • nematode — ► NOUN Zoology ▪ a worm of a group with slender, unsegmented, cylindrical bodies (including the roundworms, threadworms, and eelworms). ORIGIN from Greek n ma thread …   English terms dictionary

  • nematode — [nem′ə tōd΄] n. [< ModL Nematoda: see NEMATO & ODE2] any of a phylum (Nemata) of worms, often parasites of animals and plants, with long, cylindrical, unsegmented bodies and a heavy cuticle, as the hookworm or pinworm; roundworm …   English World dictionary

  • Nematode — Not to be confused with ringworm. Nematodes Unidentified roundworm from wet soil. The mouth is at the top left corner. Scientific classification …   Wikipedia

  • Nematode — Nematoda Nématodes …   Wikipédia en Français

  • Nématode — Nematoda Nématodes …   Wikipédia en Français

  • Nematode — Fadenwürmer Heterodera glycines mit einem Ei, ein Parasit der Sojabohne Systematik Unterreich …   Deutsch Wikipedia

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