| / English Dictionary |
ELECTRON GUN
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
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
Classified under:
Nouns denoting man-made objects
Hypernyms ("electron gun" is a kind of...):
electrode (a conductor used to make electrical contact with some part of a circuit)
Holonyms ("electron gun" is a part of...):
cathode-ray tube; CRT (a vacuum tube in which a hot cathode emits a beam of electrons that pass through a high voltage anode and are focused or deflected before hitting a phosphorescent screen)
electron microscope (a microscope that is similar in purpose to a light microscope but achieves much greater resolving power by using a parallel beam of electrons to illuminate the object instead of a beam of light)
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