Zoroastrian

[ zawr-oh-as-tree-uh n, zohr- ]

/ ˌzɔr oʊˈæs tri ən, ˌzoʊr- /

of or relating to Zoroaster or to Zoroastrianism.

one of the adherents of Zoroastrianism.

Origin of Zoroastrian

1735–45; < Latin Zōroastr(ēs) (< Greek Zōroástrēs < Avestan zaraθuštra Zarathustra) + -ian

Lawler notes that in the Zoroastrian religion of the Persians, the rooster was of the utmost importance.

The History of the Chicken: How This Humble Bird Saved Humanity |William O’Connor |December 27, 2014 |DAILY BEAST
These are combined with aspects of the Zoroastrian religion, the ancient Persian faith still practiced in the region.

Fighting Back With Faith: Inside the Yezidis’ Iraqi Temple |Michael Luongo |August 21, 2014 |DAILY BEAST
It is very odd that modern authors have considered this proclamation as inconsistent with the Zoroastrian creed.

Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 8 |Various
Fire altars were maintained, and Zoroastrian zeal was allowed to nourish in the dependent kingdom of Persia.

The Seven Great Monarchies Of The Ancient Eastern World, Vol 6. (of 7): Parthia |George Rawlinson

Manichaeism, that mixed product of Zoroastrian and Christian-gnostic elements, first enthralled him.

Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 8 |Various
The national epic poet of the Samanians was Dakiki, by birth a Zoroastrian.

Chips From A German Workshop - Volume I |Friedrich Max Mller
The latter was as clearly defined in the duality of Zoroastrian theology, as the former.

Handbook of Freethought |Various

Zoroastrian

/ (ˌzɒrəʊˈæstrɪən) /

of or relating to Zoroastrianism or Zoroaster

a follower of Zoroaster or adherent of Zoroastrianism: in modern times a Gabar or a Parsee