I. mär-ˈsü-pē-əl adjective
Date: 1819
1. : of, relating to, or being a marsupial
2. : of, relating to, or forming a marsupium
II. noun
Etymology: New Latin Marsupialia, from marsupium
Date: circa 1835
: any of an order (Marsupialia) of mammals comprising kangaroos, wombats, bandicoots, opossums, and related animals that do not develop a true placenta and that usually have a pouch on the abdomen of the female which covers the teats and serves to carry the young