CATHODE-RAY TUBE

Pronunciation (US):

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 Dictionary entry overview: What does cathode-ray tube mean? 

• CATHODE-RAY TUBE (noun)
  The noun CATHODE-RAY TUBE has 1 sense:

1. 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

  Familiarity information: CATHODE-RAY TUBE used as a noun is very rare.

 Dictionary entry details 

• CATHODE-RAY TUBE (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

Classified under:

Nouns denoting man-made objects

Synonyms:

cathode-ray tube; CRT

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)