stereopticon

noun

ste·​re·​op·​ti·​con ˌster-ē-ˈäp-ti-kən How to pronounce stereopticon (audio)
ˌstir-
1
: a projector for transparent slides often made double so as to produce dissolving views
2

Examples of stereopticon in a Sentence

Recent Examples on the Web
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The handheld or freestanding stereopticon allowed for a private viewing. — Brenda Yenke, cleveland, 15 Oct. 2020 Some made use of pinhole cameras, others worked with stereopticon images. — J. Hoberman, The New York Review of Books, 10 Sep. 2020

Word History

Etymology

New Latin, from stere- + Greek optikon, neuter of optikos optic

First Known Use

1863, in the meaning defined at sense 1

Time Traveler
The first known use of stereopticon was in 1863

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Cite this Entry

“Stereopticon.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/stereopticon. Accessed 6 Oct. 2026.

Kids Definition

stereopticon

noun
ste·​re·​op·​ti·​con ˌster-ē-ˈäp-ti-kən How to pronounce stereopticon (audio)
ˌstir-
: a projector for transparent slides
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