cathode-ray tube
noun
: 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
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But every early cathode-ray tube color television owed its screen’s red hue to europium, a rare earth element excavated and processed exclusively at the Mountain Pass Mine in San Bernardino County.
—
Charlie Campbell, Time, 17 June 2025
In the late 1950s, CBS was competing with RCA for a big contract from Motorola to produce tubes, including cathode-ray tubes, for color televisions.
—IEEE Spectrum, 23 Oct. 2024
The original peripherals worked on cathode-ray tube televisions, but here they have been updated.
—Asuka Kawanabe, WIRED, 21 Aug. 2024
Chunky cathode-ray tube televisions sat on outdated furniture.
—Christopher Muther, BostonGlobe.com, 24 Aug. 2023
But the original games would have had cathode-ray tube (CRT) screens, which—as anybody using a camera back then would remember—can be difficult to capture.
—Kevin Purdy, Ars Technica, 3 Mar. 2023
However, those retro game screens were made from cathode-ray tube (CRT), which meant when the cameras were rolling, the images were not clear.
—Jazz Tangcay, Variety, 27 Feb. 2023
For example batteries need to be removed from cellphones and older, cathode-ray tube television sets require special handling due to their lead content.
—Carina Woudenberg, Discover Magazine, 13 May 2021
Douglas created a game of tic-tac-toe, which was also displayed on a cathode-ray tube, for the University of Cambridge EDSAC computer.
—Noah Wardrip-Fruin, The Conversation, 29 Nov. 2021
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Charlie Campbell, Time, 17 June 2025
In the late 1950s, CBS was competing with RCA for a big contract from Motorola to produce tubes, including cathode-ray tubes, for color televisions.
—IEEE Spectrum, 23 Oct. 2024
The original peripherals worked on cathode-ray tube televisions, but here they have been updated.
—Asuka Kawanabe, WIRED, 21 Aug. 2024
Chunky cathode-ray tube televisions sat on outdated furniture.
—Christopher Muther, BostonGlobe.com, 24 Aug. 2023
But the original games would have had cathode-ray tube (CRT) screens, which—as anybody using a camera back then would remember—can be difficult to capture.
—Kevin Purdy, Ars Technica, 3 Mar. 2023
However, those retro game screens were made from cathode-ray tube (CRT), which meant when the cameras were rolling, the images were not clear.
—Jazz Tangcay, Variety, 27 Feb. 2023
For example batteries need to be removed from cellphones and older, cathode-ray tube television sets require special handling due to their lead content.
—Carina Woudenberg, Discover Magazine, 13 May 2021
Douglas created a game of tic-tac-toe, which was also displayed on a cathode-ray tube, for the University of Cambridge EDSAC computer.
—Noah Wardrip-Fruin, The Conversation, 29 Nov. 2021
Cite this Entry
“Cathode-ray tube.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cathode-ray%20tube. Accessed 8 Jul. 2025.
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