Also -ter-. [f. prec. + -ISM.] The religious system taught by Zoroaster and his followers, and incorporated in the Zend-Avesta: commonly known as fire-worship.
1854. Milman, Lat. Christ., IV. i. II. 4. Zoroasterianism had failed to propagate itself with any great success.
1874. Sayce, Compar. Philol., viii. 307. The deities of the Veda became the evil spirits of Zoroastrianism.
