Orthodox Church
- a Christian Church or federation of Churches originating in the Greek-speaking Church of the Byzantine Empire, not accepting the authority of the Pope of Rome, and using elaborate and archaic forms of service正教（基督教或联合教会的教派, 源于使用希腊语的拜占庭帝国教会, 不承认罗马教皇的权威, 使用繁缛陈旧的宗教仪式）。
The chief Orthodox Churches （often known collectively as the Eastern Orthodox Church） include the national Churches of Greece, Russia, Bulgaria, Romania, and Serbia. The term is also used by other ancient Churches, mainly of African or Asian origin, e.g. the Coptic, Syrian, and Ethiopian Churches.