- a river in E central Asia, flowing E, N, and then NE from the N central Mongolian People's Republic to the Selenga River. About 400 miles (645 km) long.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for orkhon
The same name seems also to have been applied to the Khangai range at the headwaters of the Orkhon.
I saw a very exciting picture as I passed through a marmot colony near the Orkhon River.Beasts, Men and Gods
In 1720, it was on the river Orkhon, near its confluence with the Selenga, some distance north of the present Urga.
It is afterwards joined by the Orkhon, and its tributaries from the Kinghan mountains.