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Any of various small nematode worms of the order Oxyurida that are parasitic in vertebrates and certain invertebrates, especially Enterobius vermicularis, a species that infests the human intestines. Also called threadworm.
(Animals) a parasitic nematode worm, Enterobius vermicularis, infecting the colon, rectum, and anus of humans: family Oxyuridae. Also called: threadworm
a small nematode worm, Enterobius vermicularis, infesting the intestine and migrating to the anus, esp. in children.
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|Noun||1.||pinworm - small threadlike worm infesting human intestines and rectum especially in children|
nematode, nematode worm, roundworm - unsegmented worms with elongated rounded body pointed at both ends; mostly free-living but some are parasitic