stylistic:style_transfer, quality:correction, structural:reformatting, quality:corruption
Definition

The Eastern Orthodox Church is defined as the Eastern Christians which recognise the seven ecumenical councils and usually are in communion with the Ecumenical Patriarchate, the Patriarchate of Alexandria, the Patriarchate of Antioch, and the Patriarchate of Jerusalem. The Eastern Orthodox churches "are defined positively by their adherence to the dogmatic definitions of the seven councils, by the strong sense of not being a sect or a denomination but simply continuing the Christian church, and, despite their varied origins, by adherence to the Byzantine rite ". Those churches are negatively defined by their rejection of papal immediate and universal supremacy.

The seven ecumenical councils recognised by the Eastern Orthodox churches are: Nicaea I, Constantinople I, Ephesus, Chalcedon, Constantinople II, Constantinople III, and Nicaea II. Those churches consider the Quinisext Council "shar the ecumenical authority of Constantinople III. "By an agreement that appears to be in place in the Orthodox world, possibly the council held in 879 to vindicate the Patriarch Photius will at some future date be recognized as the eighth council" by the Eastern Orthodox Church.

Western Rite Orthodoxy exists both outside and inside Eastern Orthodoxy. Within Eastern Orthodoxy, it is practised by a vicariate of the Antiochian Orthodox church.