| pinworm | <zoology> A small nematoid worm (Oxyurus vermicularis), which is parasitic chiefly in the rectum of man. It is most common in children and aged persons. Source: Websters Dictionary (01 Mar 1998) |
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| pinworm vaginitis | Vaginitis caused by Enterobius vermicularis. Senile vaginitis, atrophic vaginitis resulting from withdrawal of oestrogen stimulation of mucosa, often assuming the form of adhesive vaginitis. Synonym: vaginitis senilis. (05 Mar 2000) |