adjective.
Of or relating to stereoscopy or a stereoscope.
The Century Dictionary and Cyclopedia
Of, pertaining to, or resembling the stereoscope; adapted to the stereoscope; having the form in relief, or proper perspective, as of an object seen in the stereoscope: as, stereoscopic pictures; stereoscopic views.
the GNU version of the Collaborative International Dictionary of English
adjective.
Of or pertaining to the stereoscope; characteristic of, or adapted to, the stereoscope.