Difference between Possum and Opossum

What is the difference between Possum and Opossum?

Possum as a noun is any of marsupials in several families of the order diprotodontia of australia and neighboring islands. while Opossum as a noun is any american marsupial of the genera didelphys and chironectes. the common species of the united states is didelphys virginiana.

We hope you now know whether to use Possum or Opossum in your sentence.