noun
- Mammals having a placenta; all mammals except monotremes and marsupials.
- synonyms: placental mammal, eutherian, eutherian mammal
adjective
- Pertaining to or having or occurring by means of a placenta.
- usage: "all mammals except monotremes and marsupials are placental mammals"
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). placental. Retrieved September 20, 2026, from http://smartdefine.org/placental/definitions/1180870 |
| Chicago | WordNet. 2010. "placental" http://smartdefine.org/placental/definitions/1180870 (accessed September 20, 2026). |
| Harvard | WordNet 2010, placental, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/placental/definitions/1180870>. |
| MLA | WordNet. "placental" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/placental/definitions/1180870> |