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cathode ray
noun
- a flow of electrons emanating from a cathode in a vacuum tube and focused into a narrow beam.
cathode ray
- A beam of electrons streaming from the negatively charged end of a vacuum tube (the cathode) toward a positively charged plate (the anode).
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Word History and Origins
Origin of cathode ray1
First recorded in 1875–80
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Example Sentences
The beta particles emanating from radium were soon identified with the electrons of the cathode ray.
From Project Gutenberg
This display uses a five inch, high resolution cathode ray tube.
From Project Gutenberg
A very sudden stoppage, such as is produced when the cathode ray meets an impassable barrier, produces the X-ray.
From Project Gutenberg
It is with such a supply of electricity conducted through a vacuum tube that the cathode ray and the Roentgen ray are produced.
From Project Gutenberg
What the cathode ray is to a certain branch of science, pure raw linseed oil is to carriage and wagon painting.
From Project Gutenberg
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