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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When Amir is arrested on charges of attempting to create social unrest, Fatima embarks on a perilous journey with an old cathode-ray tube television and DVD player loaded onto a yak, determined to screen the film in remote villages.
—
Naman Ramachandran, Variety, 1 Dec. 2025
Beyond its resemblance to a cathode-ray tube television set, it is said to have functional benefits over open fire pits and camp stoves.
—New Atlas, 31 Aug. 2025
His eponymous company manufactured cathode-ray tubes and in 1938 introduced one of the earliest electronic TV sets.
—IEEE Spectrum, 3 July 2025
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
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Chunky cathode-ray tube televisions sat on outdated furniture.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
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Naman Ramachandran, Variety, 1 Dec. 2025
Beyond its resemblance to a cathode-ray tube television set, it is said to have functional benefits over open fire pits and camp stoves.
—New Atlas, 31 Aug. 2025
His eponymous company manufactured cathode-ray tubes and in 1938 introduced one of the earliest electronic TV sets.
—IEEE Spectrum, 3 July 2025
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
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Chunky cathode-ray tube televisions sat on outdated furniture.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
Cite this Entry
“Cathode-ray tube.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cathode-ray%20tube. Accessed 5 Dec. 2025.
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