The official name is symply Turkmenistan.
The name Turkmenistan means land of the turkey men. Turkmenistan first appeared in written form during works of the 10th century.
The Karkum Desert covers about 70% of Turkmenistan.
A descriptive name? ;-)
Afghanistan is the name of the country that borders Turkmenistan and Uzbekistan and Tajikistan and Iran!
A descriptive word would be an adjective.
Both the Kyzyl Kum and the Kara Kum deserts occur in Turkmenistan.
discriptive name of malaysia
An auctorial descriptive is an adjective based on the name of an author, for example, Shakespearian, Chaucerian.