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 (păr′ə-nə-ē′bə, pä′rä-nä-ē′bä)
A river, about 805 km (500 mi) long, of south-central Brazil. It is one of the headstreams of the Paraná River.
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It corresponds to the Paraná river basin located upstream from Sete Quedas (Seven Falls--now inundated by the Itaipu Reservoir), including large tributaries such as the Grande, Paranaíba, Tietê and Paranapanema rivers.