piro \ˈpi(ˌ)rō\noun (pluralpiroorpiros) Usage: usually capitalized Etymology: Spanish, of American Indian origin 1. a.: a Tanoan people of Pueblo Indians in central New Mexico and the state of Chihuahua, Mexico b.: a member of such people 2. a.: an Arawakan people of eastern Peru b.: a member of such people c.: the language of such people