photoscope

== English == === Etymology === From photo- +‎ -scope. Possibly originally a trademark in some cases. === Noun === photoscope (plural photoscopes) Any of various instruments employed for the observation of light, luminous effects, or photographs. Any of various devices to aid in vision. ==== Derived terms ==== photoscopic ==== Translations ==== === References === “photoscope”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.