Of or pertaining to the placenta; having, or characterized by having, a placenta; as, a placental mammal.
Of or pertaining to the Placentalia.
(pla sen´ tal) • Pertaining to mammals of the subclass Eutheria, a group characterized by the presence of a placenta; contains the majority of living species of mammals.
mammals having a placenta; all mammals except monotremes and marsupials
of or having or occurring by means of a placenta; "all mammals except monotremes and marsupials are placental mammals"
A mammal, such as humans, whose young complete their embryonic development in the uterus, joined to the mother by a placenta.
A placental mammal is one which carries its young in the uterus until it is ready to be born. Most mammals are placental mammals.