pinworm

noun

1. a small nematode worm, Enterobius vermicularis, infesting the intestine and migrating to the rectum and anus, especially in children.

noun

1. a parasitic nematode worm, Enterobius vermicularis, infecting the colon, rectum, and anus of humans: family OxyuridaeAlso called: threadworm

n.

1. Any of various small nematode worms of the family Oxyuridae that are parasitic on mammals, especially Enterobius vermicularis, a species that infests the human intestines and rectum.seatworm threadworm