an optical instrument for producing an image in which the depth or relief of an object is reversed.
Origin of pseudoscope
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for pseudoscope
Historical Examples of pseudoscope
Of course in this practical age the inquiry is put—Of what use is the stereoscope or pseudoscope?
The pseudoscope which produces effects opposite to those of the stereoscope is an interesting device.Visual Illusions