Mekong definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
river in SE Asia, flowing from Tibet through SW China & the Indochinese peninsula into the South China Sea: c. 2,600 mi (4,184 km)
Mekong definition by American Heritage Dictionary
A river of southeast Asia flowing about 4,500 km (2,800 mi) from southeast China to the South China Sea through a vast delta in southern Vietnam. The delta, a major rice-growing area, was the scene of heavy fighting during the Vietnam War.