Definitions
There is 1 meaning of the phrase
Electron Gun.
Electron Gun - as a noun
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
Example Sentences
"The electron gun in the cathode ray tube emits a beam of electrons."
"An electron gun is an essential component in old-style televisions."
"The electron gun in an oscilloscope controls the movement of the electron beam."
"The electron gun in a scanning electron microscope is used to generate high-energy electrons."
"In electron beam welding, an electron gun is used to produce a focused beam of electrons."