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Webster 1913 Edition
Triptych
Trip′tych
,Noun.
[Gr. [GREEK] consisting of three layers or plates; [GREEK] (see
Tri-
) + [GREEK], [GREEK], a fold, layer.] Anything in three parts or leaves.
Specifically: – (a)
A writing tablet in three parts, two of which fold over on the middle part.
(b)
A picture or altarpiece in three compartments.