any mouselike insectivorous marsupial of the subfamily Phascogalinae: family Dasyuridae
marsupial mouse in American English
noun
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