n. (Zool.) A jumping rodent of the genus Dipodomys of the family Heteromyidae, which lives in arid regions of Mexico and the western U. S. [ PJC ]
2. (Zool.) An Australian mammal of the genus Notomys. [ PJC ]
3. (Zool.) a small ratlike Australian kangaroo of the genus Potorous, also called the potoroo. [ PJC ]