(n.) A genus of bivalve shells of which one species (D. polymorpha) is often so abundant as to be very troublesome in the fresh waters of Europe.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). dreissena. Retrieved September 23, 2026, from http://smartdefine.org/dreissena/definitions/2000535 |
| Chicago | Webster's. 2011. "dreissena" http://smartdefine.org/dreissena/definitions/2000535 (accessed September 23, 2026). |
| Harvard | Webster's 2011, dreissena, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/dreissena/definitions/2000535>. |
| MLA | Webster's. "dreissena" 27 May 2011. Web. 23 September 2026. <http://smartdefine.org/dreissena/definitions/2000535> |