radiopticon
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English
[
edit
]
Noun
[
edit
]
radiopticon
(
plural
radiopticons
)
(
historical
)
A kind of
projector
or
magic lantern
that did not require
slides
.
Related terms
[
edit
]
stereopticon
Categories
:
English lemmas
English nouns
English countable nouns
English terms with historical senses
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