cathode ray tube

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cath·ode ray tube (CRT),

an evacuated tube containing a beam of electrons that can be deflected to various parts of a fluorescent screen; used in the cathode ray oscilloscope.

cathode ray tube

See Video display unit.

cath·ode ray tube

(CRT) (kathōd rā tūb)
An evacuated tube containing a beam of electrons that can be deflected to various parts of a fluorescent screen; used in the cathode ray oscilloscope.