Definition of Tocantins
1 river about 1700 miles (2736 kilometers) long in east central and northeastern Brazil rising in south central Goiás and flowing north into the Pará River
2 state of northeast central Brazil; capital Palmas area 116,573 square miles (301,294 square kilometers), population 1,383,445
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Britannica.com: Encyclopedia article about Tocantins
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