Cathedral

A cathedral ( Lat. cathedra, "seat" ) is a Christian church that contains the seat of a bishop. It is a religious building for worship, specifically of a denomination with an episcopal hierarchy, such as the Roman Catholic, Anglican, Orthodox and some Lutheran churches, which serves as a bishop's seat, and thus as the central church of a diocese.

There are certain variations on the use of the term "cathedral"; for example, some pre-Reformation cathedrals in Scotland now within the Church of Scotland still retain the term cathedral, despite the Church's Presbyterian polity which does not have bishops. As cathedrals are often particularly impressive edifices, the term is often used incorrectly as a designation for any large important church.

The term "cathedral" is not officially used in Eastern Orthodoxy, the church of a bishop being known as "the great church", though cathedral is commonly used in English translations. The Oriental Orthodox Churches similarly do not have cathedrals as such, however some major churches like Saint Mark's Coptic Orthodox Cathedral in Cairo are called cathedrals.

Several cathedrals in Europe, such as Strasbourg, and in England at York, Lincoln and Southwell, are referred to as Minster (German: Münster) churches, from Latin monasterium, because the establishments were served by canons living in community or may have been an abbey, prior to the Reformation. The other kind of great church in Western Europe is the abbey.

source from wikipedia