neutrino

noun

neu·​tri·​no nü-ˈtrē-(ˌ)nō How to pronounce neutrino (audio)
nyü-
plural neutrinos
: an uncharged elementary particle that is believed to have a very small mass, that has any of three forms, and that interacts only rarely with other particles
neutrinoless adjective

Examples of neutrino in a Sentence

Recent Examples on the Web The third flavor of neutrino, the tau neutrino, is the chameleon of the trio. Doug Cowen, Discover Magazine, 27 Apr. 2024 This saying, among others, drifts through my brain like a neutrino much of the day, a sort of consolation, or revelation, or a blunt assessment of the situation. Deborah Treisman, The New Yorker, 15 Apr. 2024 The same technique already generates neutrinos for other experiments. Byadrian Cho, science.org, 28 Mar. 2024 Our bodies are hit with trillions of neutrinos by the second. Elizabeth Gamillo, Discover Magazine, 28 Mar. 2024 The rate of growth—determined through comparison of the average size of voids in the early universe to those in the modern universe—can reveal how much mass neutrinos actually have. Michael D. Lemonick, Scientific American, 1 Jan. 2024 In particular, Kotwal and his colleagues sought out collisions that produced two specific pairs of particles: either a muon and a neutrino, or an electron and a neutrino. Jennifer Leman, Popular Mechanics, 7 Apr. 2022 The recoil from beta emissions is not yet observable because the mass of an electron and a neutrino are so small. The Physics Arxiv Blog, Discover Magazine, 27 Feb. 2024 More experiments must also be done to extend the Standard Model, to answer questions such as why the universe has so much matter compared to antimatter, what exactly is dark matter, and why neutrinos have mass. IEEE Spectrum, 30 Jan. 2019

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

Word History

Etymology

Italian, from neutro neutral, neuter, from Latin neutr-, neuter

First Known Use

1934, in the meaning defined above

Time Traveler
The first known use of neutrino was in 1934

Dictionary Entries Near neutrino

Cite this Entry

“Neutrino.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/neutrino. Accessed 21 May. 2024.

Kids Definition

neutrino

noun
neu·​tri·​no n(y)ü-ˈtrē-nō How to pronounce neutrino (audio)
plural neutrinos
: an uncharged elementary particle believed to have little or no mass

Medical Definition

neutrino

noun
neu·​tri·​no n(y)ü-ˈtrē-(ˌ)nō How to pronounce neutrino (audio)
plural neutrinos
: an uncharged elementary particle that is believed to be massless or to have a very small mass, that has any of three forms, and that interacts only rarely with other particles

More from Merriam-Webster on neutrino

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