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

Example Sentences

Recent Examples on the Web Results over the past two years show that the capture rate is less than 0.2 neutrino per day. Mark Fischetti, Scientific American, 14 May 2022 But in 1956, in an experiment not unlike LSND, there the neutrino was. Quanta Magazine, 28 Oct. 2021 Given the detector’s size and great distance from the collision point, FASERn will study extremely high energy neutrinos, with an average energy of about a trillion electron volts, about 200 times higher energy than the average neutrino at MINOS. Don Lincoln, Forbes, 1 June 2021 In 2018 IceCube reported a neutrino from a giant flaring blazar. Katrina Miller, Scientific American, 27 Apr. 2021 By giving a neutrino of its own to both the electron and the muon, the pairing up helped show how to organize and account for the growing table of elementary particles. Washington Post, 17 Dec. 2020 Yet a sterile neutrino would be the ghostliest of them all. William Charles Louis, Scientific American, 1 July 2020 What scientists eventually figured out is that a neutrino is not a pure object. William Charles Louis, Scientific American, 1 July 2020 But despite a decade of hardships endured by Gorham and his colleagues, by 2016 Anita had yet to detect a single cosmic neutrino. Daniel Oberhaus, Wired, 12 June 2020 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'neutrino.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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 9 Dec. 2022.

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

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