1. Fine Arts. a set of three panels or compartments side by side, bearing pictures, carvings, or the like.
2. a hinged, three-leaved tablet, written on, in ancient times, with a stylus.
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Origin: 1725-35; < Greek tríptychos of three plates, equivalent to tri- tri- + ptych- (stem of ptýx) plate + -os adj. suffix
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