Entry 2 senses · 2 variants Webster, 1913 Magian · Ma·gi·an · IPA /ˈmeɪdʒiən/ a. n. 01 a. Of or pertaining to the Magi. 1. Of or pertaining to the Magi. 02 n. One of the Magi, or priests of the Zoroastrian religion in Persia; an adherent of the Zoroastrian religion. 1. One of the Magi, or priests of the Zoroastrian religion in Persia; an adherent of the Zoroastrian religion.