prezbiterium
Prezbyerium, from the Latin presbyter, meaning elder or priest, is a term used in several Christian traditions with two related meanings. In church architecture, prezbiterium denotes the liturgical space surrounding the sanctuary: the part of the church set apart from the nave for the celebration of the Eucharist and the clergy. This area is typically raised or separated by steps or a screen and contains the altar and seating for presbyters and other ministers. The layout and extent of the prezbiterium vary by tradition and period, but it is commonly distinguished from the nave and choir, serving the ceremonial and liturgical functions of the clergy.
In church governance, prezbiterium refers to the body of presbyters (priests) in a diocese or particular church.
Thus, prezbiterium denotes both the physically distinct area used for liturgy and the corporate body of clergy