资料来源 : Webster's Revised Unabridged Dictionary (1913)

Opossum \O*pos"sum\, n. [Of N. American Indian origin.]
   (Zo["o]l.)
   Any American marsupial of the genera {Didelphys} and
   {Chironectes}. The common species of the United States is
   {Didelphys Virginiana}.