eutherian

• 属于哺乳动物主要类群真兽亚纲（Eutheria）的，包括除有袋类和单孔类以外的所有哺乳动物；有胎盘的。

Relating to or denoting mammals of the major group Eutheria, which includes all mammals except marsupials and monotremes; having a placenta.

1. Pertaining to EutheriaC2formalscientific

   Relating to the subclass Eutheria, which comprises placental mammals that have a complex placenta and give birth to relatively developed young.

   真兽亚纲的

   • Eutherian mammals, such as humans and whales, nourish their embryos through a placenta.
   • The fossil record shows the emergence of early eutherian species during the Cretaceous.
   • Unlike marsupials, eutherian reproduction involves a prolonged gestation period inside the uterus.
   • Most domestic animals, including dogs and cats, are eutherian.

   同义词placental

• 指胎盘哺乳动物，即胚胎在母体内发育并通过胎盘获取营养的哺乳动物；该类群包括除单孔目和有袋类以外的所有哺乳动物。

A noun referring to a mammal that develops inside the mother's body, receiving nourishment through a placenta; this group includes all mammals except monotremes and marsupials.

1. Placental mammalC2formalscientific

   A mammal that develops inside the mother and is nourished via a placenta, including most mammals except monotremes and marsupials.

   胎盘哺乳动物

   • Eutherians are the most diverse group of mammals.
   • Unlike monotremes, eutherians give birth to relatively well-developed young.
   • The fossil evidence suggests eutherians evolved during the Cretaceous period.
   • All domestic dogs and cats are eutherian mammals.

   同义词placentalplacental mammal