Definition of "stereopticon" []

• A magic lantern, especially one with two projectors arranged so as to produce dissolving views. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "When she holds up her film camera, I feel like Im watching someone operate an antique stereopticon."
• "I don't know Pyle's opinion of this particular work, but a newspaper described an appearance he made in Milwaukee: With the aid of a stereopticon a number of pictures were thrown on the screen, works of prominent painters, and these were criticised by the lecturer."
• "The photographs range from stereopticon views to images from books to pictures related to The Underground Railroad."