Pronunciation: ( Port. gwä-poo-re'; Sp. gwä"pô-re'), [key]
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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.