thermionic

3 ENTRIES FOUND:

therm·ion·ic

adjective \ˌthər-(ˌ)mī-ˈä-nik\

Definition of THERMIONIC

:  relating to, using, or being the emission of charged particles (as electrons) by an incandescent material

Origin of THERMIONIC

thermion charged particle from an incandescent source, from therm- + ion
First Known Use: 1909

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