Collins Concise English Dictionary © HarperCollins Publishers::
thermionic emission
  1. the emission of electrons from very hot solids or liquids: used for producing electrons in valves, electron microscopes, X-ray tubes, etc
'thermionic emission' also found in these entries (note: many are not synonyms or translations):
emission - thermionic current

Forum discussions with the word(s) "thermionic emission" in the title:


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