Related formsster·e·op·ti·can, adjectivester·e·op·ti·cian [ster-ee-op-tish-uh n, steer-] /ˌstɛr i ɒpˈtɪʃ ən, ˌstɪər-/, noun
Examples from the Web for stereopticon
She owns the only stereopticon in town and generously sees to getting the slides for the monthly lectures.
Or, they may be transferred to lantern slides and shown by means of the stereopticon.College Teaching|Paul Klapper
Sunday evening stereopticon lectures are run by the Christian Endeavor Society.
I procured a stereopticon, gave them lectures on my experience in Egypt, and lectures on art, biography and history.From the Bottom Up|Alexander Irvine
Some years ago I had occasion to attend a stereopticon lecture on the Grand Caon.The Lure of the Camera|Charles S. Olcott