stereopticon noun. [stɛrɪ'ɒptɪk(ǝ)n, stɪǝrɪ-] M19.
[formed as STEREO- + Greek optikon, neut. of optikos OPTIC adjective.]
A type of projector arranged to combine two images of the same object or scene on a screen, giving an effect of solidity as in a stereoscope, or to cause one image to dissolve gradually into another.

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