The Collaborative International Dictionary
Stereomonoscope
Stereomonoscope \Ste`re*o*mon"o*scope\, n. [Stereo- + mono- + -scope.] An instrument with two lenses, by which an image of a single picture projected upon a screen of ground glass is made to present an appearance of relief, and may be viewed by several persons at once.
Wiktionary
stereomonoscope
n. An instrument with two lenses, by which an image of a single picture projected on a screen of ground glass is made to present an appearance of relief, and may be viewed by several persons at once.