Meaning of non-placental in English:

non-placental

Pronunciation /ˌnɒnpləˈsɛntl/

adjective

  • Not relating to or derived from the placenta; (Zoology) designating a mammal characterized by the lack of a placenta in the female during gestation (i.e. a monotreme or a marsupial).

Origin

Mid 19th century; earliest use found in Philosophical Transactions of the Royal Society of London. From non- + placental.