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Meaning of wallaroo

wal•la•roo

Pronunciation: (wol"u-r'), [key]
— pl. -roos, -roo.
  1. any of several large kangaroos of the genus Macropus (Osphranter), of the grassy plains of Australia, esp. M. robustus, having a reddish-gray coat and inhabiting rocky hills. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.