The kangaroo is a marsupial from the family Macropodidae (macropods, meaning "large foot"). In common use the term is used to describe the largest species from this family, especially those of the genus Macropus: the red kangaroo, antilopine kangaroo, eastern grey kangaroo, and western grey kangaroo..
kan·ga·roo (kăng′gə-ro͞o′) n. pl. kangaroo or kan·ga·roos Any of various large herbivorous marsupials of the family Macropodidae of Australia and adjacent islands..