Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun electron_gun

1 sense of electron gun

Sense 1
electron gun -- (the electrode that is the source of electrons in a cathode-ray tube or electron microscope; consists of a cathode that emits a stream of electrons and the electrostatic or electromagnetic apparatus that focuses it)
       => electrode -- (a conductor used to make electrical contact with some part of a circuit)