Meaning of marsupial mouse

marsu'pial mouse'

Pronunciation: [key]
  1. any of various mouse-sized to rat-sized marsupials of the family Dasyuridae, occurring in Australia, New Guinea, and Tasmania: some species are rare or endangered.
  2. the mouselike crested-tailed Dasycercus cristicauda of Australian deserts. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.