marsupium

[ mahr-soo-pee-uh m ]

/ mɑrˈsu pi əm /

the pouch or fold of skin on the abdomen of a female marsupial.

Origin of marsupium

1690–1700; < New Latin, variant of Latin marsuppium pouch, purse < Greek marsýppion, diminutive of mársippos a bag, pouch

These are distinguished by the possession of a permanent nursery-pocket, the "marsupium."

Stories of the Universe: Animal Life |B. Lindsay
Name a diminutive of marsupium, a pouch, from the form of the perianth.

The Manual of the Botany of the Northern United States |Asa Gray
These bones however have no connection with the marsupium, being nearly equally developed in both male and female.

The Vertebrate Skeleton |Sidney H. Reynolds
Mammals belonging to quite different Orders show traces more or less marked of a marsupium.

The Cambridge Natural History, Vol X., Mammalia |Frank Evers Beddard

That there is more than one pouch makes a comparison with the mammary pouch rather than with the marsupium probable.

The Cambridge Natural History, Vol X., Mammalia |Frank Evers Beddard

marsupium

/ (mɑːˈsjuːpɪəm, -ˈsuː-) /

an external pouch in most female marsupials within which the newly born offspring are suckled and complete their development

C17: New Latin, from Latin: purse, from Greek marsupion, diminutive of marsipos