Definition of thermionic in English:
Of or relating to electrons emitted from a substance at very high temperature.
- The thorium dispersion enhances thermionic electron emission, which in turn improves the starting characteristics of gas tungsten arc welding electrodes.
- Electricity can be generated by the thermionic effect, that is, the use of dissimilar metals can cause electrons to flow in the presence of heat.
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Definition of thermionic in:
- British & World English dictionary
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