Usually means: Projector using radio waves, images.
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We found 5 dictionaries that define the word radiopticon:

General (5 matching dictionaries)
  1. radiopticon: Wordnik
  2. radiopticon: Wiktionary
  3. Radiopticon, radiopticon: Dictionary.com
  4. radiopticon: FreeDictionary.org
  5. Radiopticon: TheFreeDictionary.com

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Definitions from Wiktionary (radiopticon)

▸ noun:  (historical) A kind of projector or magic lantern that did not require slides.

Similar:
Radiotron, radiomovie, radiovision, one-reeler, roundie, radionics, radiophony, radiophone, radioclast, rotascope, more...

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Similar:
Radiotron, radiomovie, radiovision, one-reeler, roundie, radionics, radiophony, radiophone, radioclast, rotascope, more...



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