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CATHODE-RAY TUBE
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
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
Synonyms:
cathode-ray tube; CRT
Classified under:
Nouns denoting man-made objects
Hypernyms ("cathode-ray tube" is a kind of...):
gas-discharge tube (a tube in which an electric discharge takes place through a gas)
Meronyms (parts of "cathode-ray tube"):
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)
CRT screen; screen (the display that is electronically created on the surface of the large end of a cathode-ray tube)
Hyponyms (each of the following is a kind of "cathode-ray tube"):
Crookes tube (the original gas-discharge cathode-ray tube)
kinescope; picture tube; television tube (a cathode-ray tube in a television receiver; translates the received signal into a picture on a luminescent screen)
Holonyms ("cathode-ray tube" is a part of...):
computer; computing device; computing machine; data processor; electronic computer; information processing system (a machine for performing calculations automatically)
cathode-ray oscilloscope; CRO; oscilloscope; scope (electronic equipment that provides visual images of varying electrical quantities)
television; television system (a telecommunication system that transmits images of objects (stationary or moving) between distant points)
