forescreen

Noun

1. A screen placed in front of something.
   • The third [predella] […] is less successful overall, but it continues at an early date the idea of a pilaster forescreen through which the viewer looks to see events behind. - 1974, Susan Regan McKillop, Franciabigio,...
   • We could just catch a glimpse of the haloed warriors and elders in the frescoes, the shine of the ikons, and the heavily armed forescreen of the altar. - 2013, Patrick Leigh Fermor, The Broken Road: From the Iron Gates...