antiproton

noun

an·​ti·​pro·​ton
ˌan-tē-ˈprō-ˌtän,
ˌan-ˌtī- How to pronounce antiproton (audio)
: the antiparticle of the proton

Examples of antiproton in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Some scenes, like a fight that takes place in an antiproton river in the pocket universe, feel almost more like a cartoon than live-action, and not in a good way. Erik Kain, Forbes.com, 9 July 2025 Unfortunately, the hardware used to capture antiprotons also produces interference that limits the precision with which measurements can be made. John Timmer, ArsTechnica, 19 May 2025 There's a facility being built in Düsseldorf, Germany, for antiproton experiments, nearly 800 kilometers and eight hours away by road. John Timmer, ArsTechnica, 19 May 2025 Bob Mau: So there is no longer any colliding beams or protons and antiprotons in the Tevatron. Samia Bouzid, Scientific American, 8 Aug. 2024 See All Example Sentences for antiproton

Word History

First Known Use

1931, in the meaning defined above

Time Traveler
The first known use of antiproton was in 1931

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Cite this Entry

“Antiproton.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/antiproton. Accessed 21 Jul. 2025.

Kids Definition

antiproton

noun
an·​ti·​pro·​ton ˌant-i-ˈprō-ˌtän How to pronounce antiproton (audio)
ˌan-ˌtī-
: the part of antimatter related to the proton

More from Merriam-Webster on antiproton

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