thermionic current thermionic • thermionic emission · · · Info · Definitions · Characters · · thermionic current · · Text Common · · Latin · · Scripts 18 · · Length 5 · · Syllables Definitions · · · (noun) an electric current produced between two electrodes as a result of electrons emitted by thermionic emission. Synonyms: thermionic current. · · Noun Definition 1 Characters · · space U+0020 c latin small letter c U+0063 e latin small letter e U+0065 h latin small letter h U+0068 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075