(n.) Any one of numerous species of trematode worms belonging to Tristoma and allied genera having a large posterior sucker and two small anterior ones. They usually have broad, thin, and disklike bodies, and are parasite on the gills and skin of fishes.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). Tristoma. Retrieved September 23, 2026, from http://smartdefine.org/tristoma/definitions/2074901 |
| Chicago | Webster's. 2011. "Tristoma" http://smartdefine.org/tristoma/definitions/2074901 (accessed September 23, 2026). |
| Harvard | Webster's 2011, Tristoma, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/tristoma/definitions/2074901>. |
| MLA | Webster's. "Tristoma" 28 May 2011. Web. 23 September 2026. <http://smartdefine.org/tristoma/definitions/2074901> |