(′rau̇nd′wərm)

(invertebrate zoology) The name applied to nematodes.

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n

Any worm of the class Nematoda, including Ancylostoma duodenale, Ascaris lumbricoides, Enterobius vermicularis, and Strongy-loides stercoralis, that may infect the gastrointestinal tract of humans.

Any of the parasitic, unsegmented, cylindrical in cross-section, elongated in shape, nematode worms which invade principally the gastrointestinal tract. Almost any organ can be involved. Comprises the class Nematoda and its large number of genera.

IN BRIEF: n. - Unsegmented member of the Vermes family with elongated circular body pointed at both ends; Infections of the skin or nails caused by fungi and appearing as itching circular patches.