giant kangaroo, great gray kangaroo, Macropus giganteus

very large grayish-brown Australian kangaroo formerly abundant in open wooded areas

• kangaroo — any of several herbivorous leaping marsupials of Australia and New Guinea having large powerful hind legs and a long thick tail

• Macropus, genus Macropus — type genus of the family Macropodidae: typical kangaroos and wallabies