|—n , pl -roos|
|1.||rat kangaroo See also tree kangaroo any large herbivorous marsupial of the genus Macropus and related genera, of Australia and New Guinea, having large powerful hind legs, used for leaping, and a long thick tail: family Macropodidae|
|2.||(usually plural) stock exchange an Australian share, esp in mining, land, or a tobacco company|
|—vb , -roos, -roos, -rooing, -rooed|
|3.||informal (of a car) to move forward or to cause (a car) to move forward with short sudden jerks, as a result of improper use of the clutch|
|[C18: probably from a native Australian language]|
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