Advertisement

Advertisement

cathode ray

noun

  1. a flow of electrons emanating from a cathode in a vacuum tube and focused into a narrow beam.


cathode ray

  1. A beam of electrons streaming from the negatively charged end of a vacuum tube (the cathode) toward a positively charged plate (the anode).


Discover More

Word History and Origins

Origin of cathode ray1

First recorded in 1875–80

Discover More

Example Sentences

The beta particles emanating from radium were soon identified with the electrons of the cathode ray.

This display uses a five inch, high resolution cathode ray tube.

A very sudden stoppage, such as is produced when the cathode ray meets an impassable barrier, produces the X-ray.

It is with such a supply of electricity conducted through a vacuum tube that the cathode ray and the Roentgen ray are produced.

What the cathode ray is to a certain branch of science, pure raw linseed oil is to carriage and wagon painting.

Advertisement

Word of the Day

tortuous

[tawr-choo-uhs ]

Meaning and examples

Start each day with the Word of the Day in your inbox!

By clicking "Sign Up", you are accepting Dictionary.com Terms & Conditions and Privacy Policies.

Advertisement

Advertisement

Advertisement


cathode glowcathode rays