First Known Use: 1909
Dictionary
thermionic
adjective therm·ion·ic \ˌthər-(ˌ)mī-ˈä-nik\
Definition of THERMIONIC
: relating to, using, or being the emission of charged particles (as electrons) by an incandescent material
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Origin of THERMIONIC
thermion charged particle from an incandescent source, from therm- + ion
Rhymes with THERMIONIC
catatonic, cosmogonic, diachronic, diatonic, disharmonic, electronic, embryonic, epigonic, hegemonic, histrionic, homophonic, Housatonic, hypersonic, infrasonic, inharmonic, isotonic, macaronic, megaphonic, microphonic, monophonic, monotonic, nonionic, nucleonic, pentatonic, pharaonic, philharmonic, plate-tectonic, polyphonic, quadraphonic, semitonic, skeletonic, Solomonic, supersonic, supertonic, telephonic, ultrasonic
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