noun, plural mar·su·pi·a [mahr-soo-pee-uh] /mɑrˈsu pi ə/.
Origin of marsupium
Examples from the Web for marsupium
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.
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.
That there is more than one pouch makes a comparison with the mammary pouch rather than with the marsupium probable.