desert rat

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A jerboa, including species such as Jaculus orientalis and the Lesser Egyptian Jerboa Jaculus jaculus, which inhabit the desert regions of North Africa.
• noun A British or Australian soldier who served in North Africa with the British 7th Armoured Division in 1941-42.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun any of various leaping rodents of desert regions of North America and Mexico; largest members of the family Heteromyidae