Dip"tych (?), n. [L. diptycha, pl., fr. Gr. folded, doubled; = twice + to fold, double up.]
Anything consisting of two leaves
. Especially: (a) Roman Antiq.
A writing tablet consisting of two leaves of rigid material connected by hinges and shutting together so as to protect the writing within
A picture or series of pictures painted on two tablets connected by hinges. See Triptych.
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.
© Webster 1913.