Definition

1. Noun:
   • A small, bipedal rodent native to the deserts of North America and Mexico, characterized by long hind legs for jumping, a long tail, and fur-lined cheek pouches. It is a member of the family Heteromyidae.
   • (Also rat kangaroo) A small, herbivorous marsupial native to Australia, resembling a small kangaroo or a large rat.

Examples of Usage

• Noun:
  • The kangaroo rat is remarkably adapted to arid environments and rarely needs to drink free water.
  • We observed a kangaroo rat using its powerful hind legs to escape a predator.
  • The boodie is a type of rat kangaroo found in Australia.

Advanced Usage

• The term can be ambiguous without context, as it refers to two distinct types of animals on different continents. In scientific and North American contexts, it typically refers to the rodent (). In Australian contexts, it typically refers to the marsupial (potoroid or hypsiprymnodontid marsupials).
• "Desert kangaroo rat": A specific species () known for its extreme adaptation to dry conditions.

Variants and Related Words

• Rat kangaroo (n): An alternative name for the Australian marsupial, often used to avoid confusion with the North American rodent.
• Dipodomys (n): The scientific genus name for the North American kangaroo rat.
• Potoroo (n): A type of rat kangaroo native to Australia.

Synonyms

• For the North American rodent: Desert rat, hopping mouse (colloquial, though refers to a different Australian rodent).
• For the Australian marsupial: Rat kangaroo, bettong, potoroo.

Related Phrases

• Kangaroo rat's pouch: Refers to the external, fur-lined cheek pouches of the North American rodent used for carrying seeds.
• Like a kangaroo rat: A simile describing a quick, hopping movement.

Noun

1. any of several rabbit-sized ratlike Australian kangaroos
2. any of various leaping rodents of desert regions of North America and Mexico; largest members of the family Heteromyidae