Variant: or Igua · zú
Pronunciation: ˌ ē -gw ə - ' sü
Function: geographical name
river S Brazil in Paraná state flowing W into Alto Paraná River; contains Iguaçú Falls or Iguazú Falls (waterfall over 2 mi or 3.2 km wide composed of numerous cataracts averaging 200 ft or 61 m in height)