Entry: triptych (n.)
Definition: A picture or carving (or set of three such) in three compartments side by side, the lateral ones being usually subordinate, and hinged so as to fold over the central one; chiefly used as an altar-piece.
Other: A badass Scrabble play, for sure. There are several mentions in Infinite Jest of Byzantine triptych erotica. That is a Google Images search I’m just not quite up to, as of yet.
SNOOT score: 2
Source: Oxford English Dictionary