antineutrino

noun

an·​ti·​neu·​tri·​no
ˌan-tē-nü-ˈtrē-(ˌ)nō,
-nyü-,
ˌan-tī- How to pronounce antineutrino (audio)
: the antiparticle of the neutrino

Examples of antineutrino in a Sentence

Recent Examples on the Web But the specific oscillation here, electron antineutrino to sterile neutrino, should take place quickly. John Timmer, Ars Technica, 11 Jan. 2023 Also present in this pool of particles were neutrinos, which are very tiny, weakly interacting particles, and antineutrinos, their antimatter counterparts. Anne-Katherine Burns, The Conversation, 26 July 2023 The light in each beat reveals two things: The first flash indicates the energy of the antineutrino; the second confirms that the particle was an antineutrino. Dolly Setton, Discover Magazine, 30 July 2014 Beta decays occur within atomic nuclei, when down quarks transform into up quarks, or vice versa, allowing a neutron to become a proton, or the reverse, by emitting an electron and an antineutrino, or a positron (the antimatter counterpart of the electron) and a neutrino. Andreas Crivellin, Scientific American, 23 Oct. 2022 Electron scattering experiments measure where an electron touches a quark’s charge, and neutrino experiments measure where an antineutrino changes a quark’s flavor. Anashe Bandari, Scientific American, 16 Mar. 2023 In such decay, a neutron in a nucleus changes into a proton while emitting an electron and an electron antineutrino. Byadrian Cho, science.org, 11 Jan. 2023 That can happen only if neutrinos are their own antiparticle, in which case an antineutrino would be emitted by a neutron and then — presto! Dolly Setton, Discover Magazine, 30 July 2014 For example, electron and protons are almost certainly stable over long times (like the lifetime of the Universe), but neutrons decay after only a few minutes, turning into a proton, and electron, and a particle called an antineutrino. Phil Plait, Discover Magazine, 13 Dec. 2011 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'antineutrino.' 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

1934, in the meaning defined above

Time Traveler
The first known use of antineutrino was in 1934

Dictionary Entries Near antineutrino

Cite this Entry

“Antineutrino.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/antineutrino. Accessed 5 Mar. 2024.

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