English

Definition of cathode ray tube noun from the Oxford Advanced Learner's Dictionary

 

cathode ray tube

 noun
noun
BrE
 
; NAmE
 
Watching TV
 
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a vacuum tube which was used in the past inside a television or computer screen, etc. from which a stream of electrons produced images on the screen See related entries: Watching TV
See the Oxford Advanced American Dictionary entry: cathode ray tube