A river of southern Brazil. It rises in the Serra do Mar in south-eastern Brazil and flows westwards for 1,300 km (800 miles) to the Paraná River, which it joins shortly below the Iguaçu Falls, a spectacular series of waterfalls. Spanish name Iguazú /ˌiɣwaˈsu/.
Definition of Iguaçu in US English:
Iguaçu
proper nounˌēɡwəˈso͞o
A river in southern Brazil. It rises in the Serra do Mar in southeastern Brazil and flows west for 800 miles (1,300 km) to the Paraná River, which it joins just below Iguaçu Falls, a spectacular series of waterfalls. Spanish name Iguazú.