any of various small and medium-sized herbivorous marsupials (family Macropodidae) that are very similar to kangaroos
Origin:
< Australian native name wolabā
See wallaby in American Heritage Dictionary 4
nounpl.wal·la·bies or wallaby
Any of various marsupials of the genus Wallabia and related genera, of Australia and adjacent islands, related to the kangaroos but generally smaller and often having a colorful coat.