thermionic emission
noun
the emission of electrons from very hot solids or liquids: used for producing electrons in valves, electron microscopes, X-ray tubes, etc
Words nearby thermionic emission
thermidor,
thermidorian,
thermion,
thermionic,
thermionic current,
thermionic emission,
thermionic tube,
thermionic valve,
thermionics,
thermistor,
thermit