Proper noun
(history) The church originally made up of the Christians of the Sasanid Empire, later known as the Nestorian church and characterised by its use of the East Syriac liturgical rite.
Any of the modern successors of that church following its schisms since the 16th century, in particular the Ancient Church of the East, Assyrian Church of the East, and Chaldean Catholic Church, or all of these considered together.
Source: en.wiktionary.orgAftermath further Christological spectrum during the 5th-7th centuries showing the views of The Church of the East (light blue), Miaphysite (light red) and the western churches i.e. Eastern Orthodox and Catholic (light purple). Source: Internet
Indeed, the modern Assyrian Church of the East, which reveres Nestorius, does not fully subscribe to Nestorian doctrine, though it does not employ the title Theotokos. Source: Internet
Currently the bishops of the Assyrian Church of the East continue to maintain its apostolic succession. Source: Internet
Conciliation In 1994, the Common Christological Declaration between the Catholic Church and the Assyrian Church of the East marked the resolution of a dispute between those two churches that had existed since the Council of Ephesus. Source: Internet
The Christological differences with the Church of the East led to the bitter Nestorian schism in the Syriac-speaking world. Source: Internet
For instance, the Roman Catholic, Eastern Orthodox, Oriental Orthodox churches, and Church of the East, each maintain that their own denomination is identical with the original universal church, from which all other denominations broke away. Source: Internet