thermionic emission

thermionic emission
therm·ion·ic emission .thər-(.)mī-'än-ik- n emission of particles (as electrons) from materials at high temperature due to the heat energy imparted to them

* * *

the emission of electrons and ions by incandescent bodies.

Medical dictionary. 2011.

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  • thermionic — adj. of or relating to electrons emitted from a substance at very high temperature. Phrases and idioms: thermionic emission the emission of electrons from a heated source. thermionic valve (US tube) a device giving a flow of thermionic electrons… …   Useful english dictionary

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