'Iran' definitions:

Definition of 'Iran'

From: WordNet
noun
A theocratic Islamic republic in the Middle East in western Asia; Iran was the core of the ancient empire that was known as Persia until 1935; rich in oil [syn: Iran, Islamic Republic of Iran, Persia]

Definition of 'Iran'

From: GCIDE
  • Iran \I`ran"\ ([=e]`r[aum]n"), n. [Mod. Persian Ir[=a]n. Cf. Aryan.] The native name of Persia, the name adopted by the modern nation of Iran. [1913 Webster +PJC]