bo·ro·ro \|bōrə|rō\noun (pluralbororoorbororos) Usage: usually capitalized Etymology: Portuguese Bororó, of American Indian origin 1. a.: a people of southern Brazil b.: a member of such people 2.: the language of the Bororo people constituting the Bororoan language family of the Borotuke stock — called also Coroado • bo·ro·ro·an\-ən\adjective, usually capitalized