New American Oxford Dictionary
polyptych
pol yp tych |ˈpälipˌtik ˈpɑlɪptɪk | ▶noun a painting, typically an altarpiece, consisting of more than three leaves or panels joined by hinges or folds. ORIGIN mid 19th cent.: from late Latin polyptycha (neuter plural ) ‘registers, ’ from Greek poluptukhos ‘having many folds, ’ from polu- ‘many ’ + ptukhē ‘fold. ’
Oxford Dictionary
polyptych
polyptych |ˈpɒlɪptɪk | ▶noun a painting, typically an altarpiece, consisting of more than three leaves or panels joined by hinges or folds. ORIGIN mid 19th cent.: from late Latin polyptycha (neuter plural ) ‘registers ’, from Greek poluptukhos ‘having many folds ’, from polu- ‘many ’ + ptukhē ‘fold ’.
Duden Dictionary
Polyptychon
Po ly p ty chon , Po lyp ty chon Substantiv, Neutrum , das |Pol y ptychon |das Polyptychon; Genitiv: des Polyptychons, Plural: die Polyptychen und Polyptycha griechisch 1 aus mehr als drei Teilen bestehende, zusammenklappbare Schreibtafel des Altertums 2 Flügelaltar mit mehr als zwei Flügeln; vgl. Diptychon , Triptychon