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thermionic emission
(redirected from Thermions)

    Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia 0.02 sec.
thermionic emission
[ther′mī·on′ik]
the emission of electrons and ions by incandescent bodies.
thermionic emission (thur´mīonik imish´n),
n the release of electrons when a material is heated (e.g., electron emission when the tungsten cathode filament of a radiographic tube is heated to incandescence by means of its low-voltage heating circuit).


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