pinworm

pinworm is defined in Webster's Unabridged Dictionary (1913) with 1 sense. The full text of each entry is reproduced verbatim below.

Definitions

  1. 1.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: Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).

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