Definition of "Macropus"

A taxonomic genus within the family Macropodidae – certain marsupials including kangaroos, wallaroos, and wallabies; the typical genus of Macropodidae.  examples

(taxonomy, obsolete) A generic name which has been variously used for certain fishes, birds, insects, and crustaceans. No longer in use, being antedated by the same name in mammalogy.