寸白蟲,蟯蟲
Pinworm \Pin"worm`\, n. (Zo["o]l.) A small nematoid worm ({Oxyurus vermicularis}), which is parasitic chiefly in the rectum of man. It is most common in children and aged persons.
pinworm n : small threadlike worm infesting human intestines and rectum especially in children [syn: {threadworm}, {Enterobius vermicularis}]