Definitions
There is 1 meaning of the phrase
Cathode Ray.
Cathode Ray - as a noun
A beam of electrons emitted by the cathode of an electrical discharge tube
Example Sentences
"The cathode ray tube is a technology that was widely used in old televisions."
"The scientist experimented with cathode rays to discover their properties."
"The cathode ray oscilloscope is a device used to visualize electrical signals."
"The cathode ray tube emits a focused beam of electrons."
"The cathode ray was deflected by the magnetic field."