Reredos, the name given to the decorated portion of the wall or screen behind and rising above a church altar; as a rule it is richly ornamented with niches and figures, and stands out from the east wall of the church, but not unfrequently it is joined to the wall; splendid examples exist at All Souls' College, Oxford, Durham Cathedral, St. Albans, &c.
Definition taken from The Nuttall Encyclopædia, edited by the Reverend James Wood (1907)
Requiem * Resina