from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various nocturnal, usually arboreal marsupials of the family Didelphidae, especially Didelphis marsupialis of the Western Hemisphere, having a thick coat of hair, a long snout, and a long prehensile tail. See Regional Note at possum.
- n. Any of several similar marsupials of Australia belonging to the family Phalangeridae.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any American marsupial of the genera Didelphys and Chironectes. The common species of the United States is Didelphys virginiana.
from the GNU version of the Collaborative International Dictionary of English
- n. Any American marsupial of the genera Didelphys and Chironectes; called also possum. The common species of the United States is Didelphys Virginiana.
from The Century Dictionary and Cyclopedia
- n. An American marsupial mammal of the family Didelphyidæ (which see for technical characters).
- n. A name of sundry other marsupials: as, the ursine opossum (that is, the ursine dasyure); the vulpine opossum (the vulpine phalangist).
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. nocturnal arboreal marsupial having a naked prehensile tail found from southern North America to northern South America
- n. small furry Australian arboreal marsupials having long usually prehensile tails
Virginia Algonquian.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Powhatan opassum ("white animal"); compare Ojibwe waabasim ("white dog"). (Wiktionary)