neutrino
noun
neu·tri·no
nü-ˈtrē-(ˌ)nō 
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
Examples of neutrino in a Sentence
Recent Examples on the Web
These pulses seemed to defy current understandings of particle physics, since radio waves caused by neutrinos are not expected to be able to pass through so much rock.
—
Amber X. Chen, Smithsonian Magazine, 26 June 2025
The neutrino has only ever been observed in its left-handed form.
—Zack Savitsky, Wired News, 22 June 2025
Oddly enough, a different kind of neutrino, called a tau neutrino, is one hypothesis that some scientists have put forth as the cause of the anomalous signals.
—Ashley Strickland, CNN Money, 20 June 2025
Even the tiniest signal from a neutrino contains tons of important information.
—Stephanie Edwards, Discover Magazine, 16 June 2025
See All Example Sentences for neutrino
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Amber X. Chen, Smithsonian Magazine, 26 June 2025
The neutrino has only ever been observed in its left-handed form.
—Zack Savitsky, Wired News, 22 June 2025
Oddly enough, a different kind of neutrino, called a tau neutrino, is one hypothesis that some scientists have put forth as the cause of the anomalous signals.
—Ashley Strickland, CNN Money, 20 June 2025
Even the tiniest signal from a neutrino contains tons of important information.
—Stephanie Edwards, Discover Magazine, 16 June 2025
See All Example Sentences for neutrino
Cite this Entry
“Neutrino.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/neutrino. Accessed 6 Aug. 2025.
Copy CitationKids Definition
neutrino
noun
neu·tri·no
n(y)ü-ˈtrē-nō
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
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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