Trip"tych (?), n. [Gr. &?; consisting of three layers or plates; &?; (see Tri-) + &?;, &?;, 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.

Trip"tych (?), n. [Gr. &?; consisting of three layers or plates; &?; (see Tri-) + &?;, &?;, 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.

• A picture or series of pictures painted on three tablets connected by hinges. See Diptych.