Diorama
Pronunciation : Di`o*ra"ma
Part of Speech : n.
Etymology : [Gr. diorama. Cf. Panorama.]
Definition : 1. A mode of scenic representation, invented by Daguerre and Bouton, in which a painting is seen from a distance through a large opening. By a combination of transparent and opaque painting, and of transmitted and reflected light, and by contrivances such as screens and shutters, much diversity of scenic effect is produced.
2. A building used for such an exhibition.
Source : Webster's Unabridged Dictionary, 1913