cathode-ray tube


Definition of cathode-ray tube

: a vacuum tube in which a beam of electrons is projected on a phosphor-coated screen to produce a luminous spot at a point on the screen determined by the effect on the electron beam of a variable magnetic field within the tube

Examples of cathode-ray tube in a Sentence

Recent Examples on the Web

The idea of a big screen with a fixed connection will be as alien to the second half as landlines and cathode-ray tubes are to today’s youngsters. The Economist, "How the world’s poor are discovering leisure online," 8 June 2019 When first built in 1965, the consoles had era-appropriate cathode-ray tube monitors. Matt Blitz, Popular Mechanics, "Houston, We Have a Resurrection: How Mission Control Came Back from the Brink," 27 Nov. 2018 There is mercury in liquid-crystal display screens, lead in cathode-ray tubes, cadmium in semiconductors and batteries, and ozone layer-destroying chlorofluorocarbons in old refrigerators, for example. Peter Ford, The Christian Science Monitor, "'E-waste': Getting grip on a growing global problem," 9 July 2018 The console also offers three display choices: the original 4:3 aspect ratio of the games, a CRT filter that replicates the same blurry look of cathode-ray tube TVs, and a Pixel Perfect mode that makes the games look crisp and clean. Gregory Schmidt, New York Times, "Nintendo’s Super NES Classic Edition Is Nostalgia, Revisited," 27 Sep. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cathode-ray tube.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of cathode-ray tube

1905, in the meaning defined above

Keep scrolling for more

Learn More about cathode-ray tube

Statistics for cathode-ray tube

Last Updated

10 Jun 2019

Look-up Popularity

Time Traveler for cathode-ray tube

The first known use of cathode-ray tube was in 1905

See more words from the same year

Keep scrolling for more

More Definitions for cathode-ray tube

cathode-ray tube


English Language Learners Definition of cathode-ray tube

: a large tube that shows a picture on a screen (such as a television or computer screen)

cathode-ray tube


Medical Definition of cathode-ray tube

: a vacuum tube in which a beam of electrons is projected on a fluorescent screen to produce a luminous spot

More from Merriam-Webster on cathode-ray tube Encyclopedia article about cathode-ray tube

Comments on cathode-ray tube

What made you want to look up cathode-ray tube? Please tell us where you read or heard it (including the quote, if possible).


something desired as essential

Get Word of the Day daily email!

Test Your Vocabulary

What's that Smell?! Quiz

  • wide eyed dog smelling rose
  • Someone who is hircine smells like a:
True or False

Test your knowledge - and maybe learn something along the way.

Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!