(n.) A small nematoid worm (Oxyurus vermicularis), which is parasitic chiefly in the rectum of man. It is most common in children and aged persons.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). pinworm. Retrieved September 21, 2026, from http://smartdefine.org/pinworm/definitions/2045752 |
| Chicago | Webster's. 2011. "pinworm" http://smartdefine.org/pinworm/definitions/2045752 (accessed September 21, 2026). |
| Harvard | Webster's 2011, pinworm, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/pinworm/definitions/2045752>. |
| MLA | Webster's. "pinworm" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/pinworm/definitions/2045752> |