Turkmenistan Turk·men·i·stan (tûrk′mĕn-ĭ-stăn′, -stän′) A country of west-central Asia east of the Caspian Sea. Once part of ancient Persia and later ruled by Arabs (8th century), Turks (11th century), Mongols (13th-14th century), and Uzbeks (late 15th century), it was annexed by Russia in 1881 and became a constituent state of the USSR …

