Defn: Of or pertaining to Zoroaster, or his religious system.

ZOROASTRIAN
Zo`ro*as"tri*an, n.

Defn: A follower of Zoroaster; one who accepts Zoroastrianism.

ZOROASTRIANISM
Zo`ro*as"tri*an*ism, n.

Defn: The religious system of Zoroaster, the legislator and prophet of the ancient Persians, which was the national faith of Persia; mazdeism. The system presupposes a good spirit (Ormuzd) and an opposing evil spirit (Ahriman). Cf. Fire worship, under Fire, and Parsee.

ZOROASTRISM
Zo`ro*as"trism, n.

Defn: Same as Zoroastrianism. Tylor.

ZOSTER
Zos"ter, n. Etym: [L., fr. Gr. Zone.] (Med.)

Defn: Shingles.

ZOSTERA
Zos"te*ra, n. Etym: [NL.] (Bot.)