Amu Dar'ya

geographical name
Amu Dar'·​ya | \ ˌä-mü-ˈdär-yə How to pronounce Amu Dar'ya (audio) \
variants: or ancient Oxus \ ˈäk-​səs How to pronounce Oxus (audio) \

Definition of Amu Dar'ya

river over 1500 miles (2400 kilometers) long in central and western Asia flowing from the Pamirs into the Aral Sea

Note: Reduced flow of the Amu Darya in the latter part of its course, mainly due to the siphoning off of water for irrigation, has been a contributing factor in the severe shrinkage of the Aral Sea.