Definition of "Avestan" :
noun: the script in which the ancient Persian language of the Avesta is written
noun: an ancient Iranian language
adjective: of or pertaining to the Avesta (sacred text of Zoroastrianism)
noun: the script in which the ancient Persian language of the Avesta is written
noun: an ancient Iranian language
adjective: of or pertaining to the Avesta (sacred text of Zoroastrianism)