- Main Entry:
- opos·sum

- Pronunciation:
-
\(ə-)ˈpä-səm\
- Function:
- noun
- Inflected Form(s):
- plural opossums also opossum
- Etymology:
- earlier apossoun, opassom, Virginia Algonquian, from Algonquian *wa·p- white + *-aʔθemw- dog
- Date:
- 1610
1: any of a family (Didelphidae) of American marsupials that usually have a pointed snout and prehensile tail; especially : a common omnivorous largely nocturnal mammal (Didelphis virginiana) of North America that has grayish to blackish fur with white on the cheeks and is an expert climber2: any of several Australian phalangers