Iguaçú Definition
Igua·çú (ē′gwä so̵̅o̅′)
river in S Brazil, flowing into the Paraná River on the border of NE Argentina: c. 800 mi (1,287 km): contains Iguaçú Falls, c. 2.5 mi (4 km) wide, composed of more than 200 cataracts averaging 200 ft (61 m) in height

