(Gr. folding-doors), a name given by Chrysostom and Evagrius to the veils or hangings which in the ancient Christian ciqurches divided the chancel from the rest of the church. They received this name from their opening in the middle like folding doors. They were used partly to hide the altar part of the, church from the catechumens and unbelievers, and partly to cover the eucharist in the time of consecration.