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[ster-ee-op-ti-kuh n, -kon, steer-] /ˌstɛr iˈɒp tɪ kən, -ˌkɒn, ˌstɪər-/
noun, Optics.
a projector usually consisting of two complete lanterns arranged so that one picture appears to dissolve while the next is forming.
Origin of stereopticon
1860-65, Americanism; stere(o)- + Greek optikón (neuter) optic
Related forms
stereoptican, adjective
[ster-ee-op-tish-uh n, steer-] /ˌstɛr i ɒpˈtɪʃ ən, ˌstɪər-/ (Show IPA),
noun Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for stereopticon
  • The source of illumination shall be a lamp or a type listed for stereopticon use or for motion picture projection.
  • The above scene can be illustrated either by a soloist, quartette or with an orchestra, and with or without stereopticon slides.
  • All the parts are studied by aid of the stereopticon and sectional parts.
  • The formal lectures were all illustrated with stereopticon views.
  • Both will be abundantly and delightfully illustrated with stereopticon pictures from original photographs and drawings.
  • Eldridge presented versions of this popular speech, using stereopticon images, on many occasions.
  • The lectures will be fully illustrated with colored stereopticon views.
  • The lecture was illustrated with stereopticon views.
British Dictionary definitions for stereopticon


/ˌstɛrɪˈɒptɪkən; ˌstɪər-/
a type of projector with two complete units arranged so that one picture dissolves as the next is forming
Word Origin
C19: from stereo- + Greek optikon, neuter form of optikosoptic
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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