Definition of Marsupialia in English:

Marsupialia

noun

Zoology
  • Treated as plural. An order of mammals comprising forms which lack a complete placenta and give birth to very immature young which complete their development while attached to the mother's mammae, typically located in a protective abdominal pouch.

Origin

Mid 19th century; earliest use found in Henry McMurtrie (1793–1865). From scientific Latin Marsupialia from post-classical Latin marsupialis + -a.

Pronunciation

Marsupialia

/mɑːˌs(j)uːpɪˈeɪlɪə/