cathode ray


cathode rays plural : the high-speed electrons emitted in a stream from the heated cathode of a vacuum tube
: 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 Moreover, the electrons have about the same energy as those inside an old-style cathode ray tube television: again, a pittance by particle accelerator standards. Rahul Rao, Popular Science, 2 Nov. 2023 Speaking with Ars, Abraham recalled how, as a teenager, the top floor of his parents' split-level Australian home would become a grueling sauna thanks to a combination of the summer sun outside and a gaming PC (with cathode ray tube monitor) hemorrhaging heat inside. Daniel Starkey, Ars Technica, 4 Sep. 2022 In the United States at least, the cathode ray tube technology that yielded television in the 1950s remained pretty much unchanged from the 1950s until the 2000s. Amy Shira Teitel, Discover Magazine, 7 Sep. 2017 Imagine generations of children unacquainted with the chattering of angels lodged deep within the recesses of an old cathode ray tube TV. Veronique Greenwood, Discover Magazine, 13 June 2012 Home entertainment systems primarily consisted of bulky cathode ray tube TVs, VCRs and maybe a Nintendo 64 or PlayStation video game console. Jeremy Hsu, Discover Magazine, 30 July 2017 LCDs long ago ousted cathode ray tube (CRT) and plasma displays as the dominant consumer display tech. Scharon Harding, Ars Technica, 25 June 2022 The ’90s may have been a simpler time technologically, a fact underscored by the cathode ray tube television sets and first-generation Apple Macintosh computers that populate the photos. New York Times, 3 Feb. 2022 Nam June Paik began that exchange with a cathode ray tube in 1963. Jonathon Keats, Forbes, 28 May 2021 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'cathode ray.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1880, in the meaning defined at sense 1

Time Traveler
The first known use of cathode ray was in 1880

Dictionary Entries Near cathode ray

Cite this Entry

“Cathode ray.” Dictionary, Merriam-Webster, Accessed 1 Dec. 2023.

Kids Definition

cathode ray

: one of the high-speed electrons driven in a stream from the heated cathode of a vacuum tube under the force of a strong electric field
: a stream of cathode-ray electrons

More from Merriam-Webster on cathode ray

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