The Collaborative International Dictionary of English v.0.48:
Bandicoot \Ban"di*coot\, n. [A corruption of the native name.] (Zool.) (a) A species of very large rat (Mus giganteus), found in India and Ceylon. It does much injury to rice fields and gardens. (b) A ratlike marsupial animal (genus Perameles) of several species, found in Australia and Tasmania. [1913 Webster]