- a city in and the capital of Rondônia, in W Brazil, on the Madeira River.
- a state in W Brazil. 93,815 sq. mi. (242,980 sq. km). Capital: Pôrto Velho.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a city in W Brazil, capital of the federal territory of Rondônia on the Madeira River. Pop: 301 000 (2005 est)
- a state of W Brazil: consists chiefly of tropical rainforest; a centre of the Amazon rubber boom until about 1912. Capital: Porto Velho. Pop: 1 431 777 (2002). Area: 243 043 sq km (93 839 sq miles)Former name (until 1956): Guaporé