Opossum /(?)/

O·pos·sum

Opossum

n.
  1. Any American marsupial of the genera Didelphys and Chironectes; called also possum. The common species of the United States is Didelphys Virginiana. (Zool.)

Phrases & Compounds
Opossum mouse
See Flying mouse, under Flying.
Opossum shrimp
any schizopod crustacean of the genus Mysis and allied genera. See Schizopoda.