Noun: Wallaroo (wah-luh-ROO)
Definition:
1. A large reddish-gray kangaroo (Macropus robustus) — called also euro.
2. Either of two kangaroos (Macropus antelopinus and M. bernardus) related to the wallaroo.
Sample sentence: Wallaroos are among the approximately 200 species of marsupials found in Australia, New Guinea, and neighboring islands.