di·o·ram·a / ˌdīəˈramə; -ˈrä-/ • n. a model representing a scene with three-dimensional figures, either in miniature or as a large-scale museum exhibit. ∎  chiefly hist. a scenic painting, viewed through a peephole, in which changes in color and direction of illumination simulate changes in the weather, time of day, etc. ∎  a miniature movie set used for special effects or animation.

diorama.
1. Large picture given additional reality by optical illusions and illumination, and viewed through an aperture in a dark room. It underwent repeated changes by the operation of modified light on its transparent and semi-transparent surface.

2. Building specially constructed for such a picture, sometimes with a revolving circular room for spectators.

diorama XIX. f. DI- 3 + Gr. hórāma view, f. horân see.