What is the name of the bishop's chair in a cathedral?

The term "cathedra" refers specifically to the bishop's chair in a cathedral, symbolizing the bishop's authority and role as a shepherd of the diocese. It is typically a prominent and often ornately designed chair situated in a cathedral's transept, signifying the seat of teaching authority within the church. The cathedra is not merely a functional piece of furniture but serves as a powerful symbol of the bishop's governance and spiritual leadership over the congregation.

Understanding the other options provides clarity on why they do not fit the definition of the bishop's chair. The altar, for instance, is pivotal in the celebration of the Eucharist and is where sacrifices and offerings are made during church services, but it does not specifically denote the bishop's seat. The pulpit is used for preaching and delivering sermons but is separate from the authority symbolized by the cathedra. The chancel, on the other hand, refers to the area around the altar in a church, typically reserved for the clergy and choir, and does not denote a chair at all. Thus, the cathedra stands out as the correct answer, directly identifying the seat associated with episcopal authority.