Turan (Avestan: Tūiriiānəm; Middle Persian: Tūrān; Persian: توران, romanized: Turân, pronounced [tʰuːˈɾɒːn], lit. 'The Land of Tur') is a historical region in Central Asia. The term is of Iranian origin[1][2] and may refer to a particular prehistoric human settlement, a historic geographical region, or a culture. The original Turanians were an Iranian[3][4][5] tribe of the Avestan age.
an Iranian term applied to the country to the north-east of Iran.
Iranian term applied to region lying to the northeast of Iran and ultimately indicating very vaguely the country of the Turkic peoples.
Turan was one of the nomadic Iranian tribes mentioned in the Avesta. However, in Firdousi's poem, and in the later Iranian tradition generally, the term Turan is perceived as denoting 'lands inhabited by Turkic speaking tribes.'
Iranian tribes that also keep on recurring in the Yasht, Airyas, Tuiryas, Sairimas, Sainus and Dahis