noun Date: 1924 an electron-emitting cathode and its surrounding assembly (as electromagnets in a cathode-ray tube) for directing, controlling, and focusing a beam of electrons
ELECTRON GUN
Meaning of ELECTRON GUN in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012