thermionic
/θəːmɪˈɒnɪk
/adjective
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.
