- a river in S Brazil, flowing W to the Paraná River on the Argentina-Paraguay-Brazil border: noted for its falls. 745 miles (1199 km) long.
Also I·gua·çú [ee-gwuh-soo] /ˌi gwəˈsu/.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- a river in SE South America, rising in S Brazil and flowing west to join the Paraná River, forming part of the border between Brazil and Argentina. Length: 1200 km (745 miles)