a river in NW South America, rising in S Colombia and flowing southeast as most of the border between Colombia and Peru, entering the Amazon in Brazil: scene of the Putumayo rubber scandal (1910–11) during the rubber boom, in which many indigenous people were enslaved and killed by rubber exploiters. Length: 1578 km (980 miles)
Brazilian name: Içá
Putumayo in American English
(ˌputuˈmɑjɔ)
river in NW South America, flowing from SW Colombia along the Colombian-Peruvianborder into the Amazon in NW Brazil: c. 1,000 mi (1,609 km)