neu·​tri·​no | \ nü-ˈtrē-(ˌ)nō , nyü-\
plural neutrinos

Definition of neutrino

: 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

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Other Words from neutrino

neutrinoless \ nü-​ˈtrē-​(ˌ)nō-​ləs , nyü-​ \ adjective

Examples of neutrino in a Sentence

Recent Examples on the Web

The facility’s proton accelerator will hurl neutrinos to a detector now being installed in Lead, S.D. CERN is helping to build DUNE’s detectors, just like Fermilab helped build significant parts of the Large Hadron Collider. Peter Kujawinski, New York Times, "Colliders, Sundials and Wonder: When Science Is Your Destination," 28 May 2018 Scientists caught one of those neutrinos in the ice cube and were able to trace it back to a special type of galaxy called a blazar. Brian Resnick, Vox, "10 science stories in 2018 that made us go, “Whoa, that’s awesome”," 18 Dec. 2018 The Standard Model would be updated to include some sort of sterile neutrino. NBC News, "A major physics experiment just detected a particle that shouldn't exist," 3 June 2018 The catch is that only low-energy neutrino particles can move very far through other kinds of matter. Avery Thompson, Popular Mechanics, "Strange Particles Coming Out of the Earth Hint at New Physics," 28 Sep. 2018 Since its discovery as a neutrino source less than a year ago, blazar TXS 0506+056 has been the subject of intensive scrutiny. Smithsonian, "Scientists Explain The Thrill of Detecting a Neutrino From a Far-Off Galaxy," 12 July 2018 MicroBooNE, which should deliver its first data later this year, can distinguish between neutrino signals and impostors. Clara Moskowitz, Scientific American, "Evidence Builds for a New Kind of Neutrino," 7 June 2018 Gamma rays are associated with the particle acceleration that produces both neutrinos and cosmic rays. Author: Sarah Kaplan, Anchorage Daily News, "In a cosmic first, scientists detect ‘ghost particles’ from a distant galaxy," 12 July 2018 One of the neutrino-catching probes at the IceCube Neutrino Observatory. Robert Lee Hotz, WSJ, "Scientists Track Neutrinos Through Ice to Their Source in the Cosmos," 12 July 2018

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.

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First Known Use of neutrino

1934, in the meaning defined above

History and Etymology for neutrino

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

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Statistics for neutrino

Last Updated

8 Feb 2019

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Time Traveler for neutrino

The first known use of neutrino was in 1934

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More Definitions for neutrino



English Language Learners Definition of neutrino

physics : a particle that is smaller than an atom and that has no electrical charge


neu·​tri·​no | \ n(y)ü-ˈtrē-(ˌ)nō \
plural neutrinos

Medical Definition of neutrino

: 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

Rhyming Dictionary: Words that rhyme with neutrino Encyclopedia article about neutrino

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