Definition of: cyclorama

(sī′klə·ram′ə, -rä′mə) noun
1. A panorama on the interior of a cylindrical surface, appearing as in natural perspective, the spectator standing in the center.
2. A backdrop curtain, often concave, used on theater stages to give the illusion of perspective; a concave plaster structure, sometimes merely a dome, used in the same way. [<CYCLO- + Gk. horama a view]
—cy·clo·ram·ic (si′klə·ram′ik) adjective