noun anything consisting of two leaves.
2. diptych ·noun a picture or series of pictures painted on two tablets connected by hinges. ·see triptych.
3. diptych ·noun a writing tablet consisting of two leaves of rigid material connected by hinges and shutting together so as to protect the writing within.
4. diptych ·noun a double catalogue, containing in one part the names of living, and in the other of deceased, ecclesiastics and benefactors of the church; a catalogue of saints.