Meaning of Zoroastrianism

Zo•ro•as•tri•an•ism

Pronunciation: (zôr"ō-as'trē-u-niz"um, zōr"-), [key]
— n.
  1. an Iranian religion, founded c600b.c.by Zoroaster, the principal beliefs of which are in the existence of a supreme deity, Ahura Mazda, and in a cosmic struggle between a spirit of good, Spenta Mainyu, and a spirit of evil, Angra Mainyu.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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