Liturgical east end

liturgical east end: the altar end in a church that is not geographically orientated east/west.
loggia: a gallery or verandah, open on one or more sides, often incorporating an arcade.

In Romanesque, Byzantine and Gothic Christian abbey, cathedral and church architecture, the term is applied to the semi-circular or polygonal section of the sanctuary at the liturgical east end beyond the altar.

See also: High Altar, Band, Architecture, Quire, Cathedral