Meanings
nounradiopticon (plural radiopticons)
plural radiopticons
- historicalA kind of projector or magic lantern that did not require slides.
Origin
From radio- (“ray”) + Ancient Greek ὀπτικός (optikós, “visual”).
Full word history & related roots →Cite this entry
APA
radiopticon. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/radiopticon
MLA
“radiopticon.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/radiopticon. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “radiopticon,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/radiopticon.
Source: radiopticon on Wiktionary, CC BY-SA 4.0.