märˈsüpēəm noun
( plural marsu·pia -ēə)
Etymology: New Latin, from Latin, purse, pouch, from Greek marsipion, marsypion, diminutive of marsipos, marsypos pouch, perhaps from Avestan marshū belly
1.
a.
(1) : an abdominal pouch formed by a fold of the skin and enclosing the mammary glands of most marsupials
(2) : incubatorium 1
b. : an analogous structure in lower animals (as fishes or crustaceans) for enclosing or carrying eggs or young
c. : pecten 1a
2. : perigynium 1