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
As per the research team, neutrinos are crucial to understanding the universe due to their ability to pass through matter almost undetected.
—
Georgina Jedikovska, Interesting Engineering, 23 Oct. 2025
The third spoke in this wheel is messengers in the form of high-energy particles, such as neutrinos or cosmic rays generated by cosmic events.
—Robert Lea, Space.com, 14 Sep. 2025
Different branches of science use and study neutrinos for different reasons.
—Jorge Garay, Wired News, 19 Aug. 2025
Precise observations of solar neutrinos also point to new physics.
—Bruce Dorminey, Forbes.com, 12 Aug. 2025
See All Example Sentences for neutrino
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Georgina Jedikovska, Interesting Engineering, 23 Oct. 2025
The third spoke in this wheel is messengers in the form of high-energy particles, such as neutrinos or cosmic rays generated by cosmic events.
—Robert Lea, Space.com, 14 Sep. 2025
Different branches of science use and study neutrinos for different reasons.
—Jorge Garay, Wired News, 19 Aug. 2025
Precise observations of solar neutrinos also point to new physics.
—Bruce Dorminey, Forbes.com, 12 Aug. 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 31 Oct. 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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