cathode ray
noun
1
cathode rays plural
: the high-speed electrons emitted in a stream from the heated cathode of a vacuum tube
2
: a stream of electrons emitted from the cathode of a vacuum tube
—usually used in plural
Examples of cathode ray in a Sentence
Recent Examples on the Web
The Mother room, with its 1979 notions of what 22nd century computer technology would look like, was copied down to now-primitive cathode ray screens (sourced from a Chinese manufacturer that still makes them).
—
Bob Strauss,
Los Angeles Times,
2 June 2026
According to the United States Environmental Protection Agency (EPA), these bulky electronics (otherwise known as CRTs, standing for cathode ray tubes) contain hazardous materials in the funnel glass, which makes disposing of them especially tricky.
—
Caroline Lubinsky,
Martha Stewart,
5 Apr. 2026
Flat screen televisions didn’t enter the market until 1997, so in 1996, we were all gathered around massive, furniture-weight cathode ray tube sets.
—
Ryan Brennan
march 20,
Miami Herald,
20 Mar. 2026
At this point, any serious retro gamer knows that a bulky cathode ray tube (CRT) TV provides the most authentic, lag-free experience for game consoles that predate the era of flat-panel HDTVs (i.e,.
—
Ars Technica,
23 Dec. 2024
The cathode rays Crookes observed in his vacuum tubes were as evanescent as any ghost.
—
Jonathon Keats,
Forbes,
23 Sep. 2024
Like vinyl and cassette tapes, cathode ray tubes are experiencing a comeback in some circles.
—
Stephen Cass,
IEEE Spectrum,
23 Apr. 2021
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Bob Strauss,
Los Angeles Times,
2 June 2026
According to the United States Environmental Protection Agency (EPA), these bulky electronics (otherwise known as CRTs, standing for cathode ray tubes) contain hazardous materials in the funnel glass, which makes disposing of them especially tricky.
—
Caroline Lubinsky,
Martha Stewart,
5 Apr. 2026
Flat screen televisions didn’t enter the market until 1997, so in 1996, we were all gathered around massive, furniture-weight cathode ray tube sets.
—
Ryan Brennan
march 20,
Miami Herald,
20 Mar. 2026
At this point, any serious retro gamer knows that a bulky cathode ray tube (CRT) TV provides the most authentic, lag-free experience for game consoles that predate the era of flat-panel HDTVs (i.e,.
—
Ars Technica,
23 Dec. 2024
The cathode rays Crookes observed in his vacuum tubes were as evanescent as any ghost.
—
Jonathon Keats,
Forbes,
23 Sep. 2024
Like vinyl and cassette tapes, cathode ray tubes are experiencing a comeback in some circles.
—
Stephen Cass,
IEEE Spectrum,
23 Apr. 2021
Cite this Entry
“Cathode ray.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cathode%20ray. Accessed 25 Jun. 2026.
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