(n.pl.) A subclass of Mammalia, having a cloaca in which the ducts of the urinary, genital, and alimentary systems terminate, as in birds. The female lays eggs like a bird. See Duck mole, under Duck, and Echidna.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). monotremata. Retrieved September 26, 2026, from http://smartdefine.org/monotremata/definitions/2034297 |
| Chicago | Webster's. 2011. "monotremata" http://smartdefine.org/monotremata/definitions/2034297 (accessed September 26, 2026). |
| Harvard | Webster's 2011, monotremata, Smart Define, viewed 26 September, 2026, <http://smartdefine.org/monotremata/definitions/2034297>. |
| MLA | Webster's. "monotremata" 27 May 2011. Web. 26 September 2026. <http://smartdefine.org/monotremata/definitions/2034297> |