from The American Heritage® Dictionary of the English Language, 4th Edition
- The second-longest river in the world and the one with the greatest volume of water, flowing about 6,275 km (3,900 mi) from northern Peru across northern Brazil to a wide delta on the Atlantic Ocean. The first European to explore it was probably the Spanish navigator Vicente Yáñez Pinzón in 1500.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a major South American river; arises in the Andes and flows eastward into the South Atlantic; the world's 2nd longest river (4000 miles)
Sorry, no etymologies found.