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
Successful sea trial Nearly massless and electrically neutral, neutrinos are born in violent events like nuclear reactions inside stars.
—
Mrigakshi Dixit, Interesting Engineering, 17 Oct. 2025
Fermi hypothesized that some new force could change a proton into a neutron, or vice versa, and, in the process, release an electron and a nearly massless particle called a neutrino.
—Paul Sutter, Space.com, 14 Oct. 2025
During this period, Reines and a Los Alamos co-worker, Clyde Cowan, started to work on detecting neutrinos, a subatomic particle that had been theorized in the 1930s but, in the mid-1950s, had not been proven to exist.
—Andre Mouchard, Oc Register, 10 Oct. 2025
Different branches of science use and study neutrinos for different reasons.
—Jorge Garay, Wired News, 19 Aug. 2025
See All Example Sentences for neutrino
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Mrigakshi Dixit, Interesting Engineering, 17 Oct. 2025
Fermi hypothesized that some new force could change a proton into a neutron, or vice versa, and, in the process, release an electron and a nearly massless particle called a neutrino.
—Paul Sutter, Space.com, 14 Oct. 2025
During this period, Reines and a Los Alamos co-worker, Clyde Cowan, started to work on detecting neutrinos, a subatomic particle that had been theorized in the 1930s but, in the mid-1950s, had not been proven to exist.
—Andre Mouchard, Oc Register, 10 Oct. 2025
Different branches of science use and study neutrinos for different reasons.
—Jorge Garay, Wired News, 19 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 21 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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