1. Any of various leaping rodents of desert regions of North America and Mexico; largest members of the family Heteromyidae
   - desert rat, Dipodomys phillipsii 
2. Any of several rabbit-sized ratlike Australian kangaroos
   - rat kangaroo

Derived forms: kangaroo rats

Type of: kangaroo, pocket rat

Part of: Dipodomys, genus Dipodomys, Potoroinae, subfamily Potoroinae

Encyclopedia: Kangaroo rat

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