noun
: the projection of a motion or still picture upon a large translucent screen from the rear to serve as a background for performances of motion-picture actors being photographed in front of the screen
noun
: the projection of a motion or still picture upon a large translucent screen from the rear to serve as a background for performances of motion-picture actors being photographed in front of the screen
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012