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1. (Placename) a river in W central South America, rising in SW Brazil and flowing northwest as part of the border between Brazil and Bolivia, to join the Mamoré River. Length: 1750 km (1087 miles). Spanish name: Iténez
2. (Placename) the former name (until 1956) of Rondônia
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
1. a river forming part of the boundary between Brazil and Bolivia, flowing NW to the Mamoré River. 950 mi. (1530 km) long.
2. former name of Rondônia.
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