Ancient, Araxes.a river in SW Asia, flowing from E Turkey along part of the boundary between NW Iran and Armenia and Azerbaijan into the Kura River. about 660 miles (1065 km) long.
Ancient name: Araxes, Russian name: Araks a river rising in mountains in E Turkey and flowing east to the Caspian Sea: forms part of the E border of Turkey and the N border of Iran. Length: about 1100 km (660 miles)