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Zoroastrianism
Zo·ro·as·tri·an·ism [ zàwrō ástree ə nìzzəm ]


noun 
Definition:
 
ancient Persian religion: an ancient religion founded by the Persian prophet Zoroaster, the principal belief of which is in a supreme deity and a cosmic contest between two spirits, one good and one evil

Zo·ro·as·tri·an noun, adjective
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