/ Dictionary / Index W wallaroo: Meaning and Definition of Find definitions for: wal•la•roo Pronunciation: (wol"u-r'), [key] — pl. -roos, -roo. 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. wallah Wallasey Related Content Daily Word Quiz: modify Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language