[ soo-duh-skohp ]
/ ˈsu dəˌskoʊp /
an optical instrument for producing an image in which the depth or relief of an object is reversed.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for pseudoscope
The pseudoscope which produces effects opposite to those of the stereoscope is an interesting device.Visual Illusions|Matthew Luckiesh
Of course in this practical age the inquiry is put—Of what use is the stereoscope or pseudoscope?