: an uncharged elementary particle that has a mass nearly equal to that of the proton and is present in all known atomic nuclei except the hydrogen nucleus
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The presence of such a field would make the strong nuclear force, which holds protons and neutrons together, symmetric in a way that’s observed in experiments.
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Charlie Wood, Quanta Magazine, 17 May 2024
There are four fundamental forces in the universe: gravity, electromagnetism, the strong force (which holds together protons and neutrons in atomic nuclei) and the weak force (which plays a role in nuclear decay).
—Will Sullivan, Smithsonian Magazine, 11 Apr. 2024
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Charlie Wood, Quanta Magazine, 17 May 2024
There are four fundamental forces in the universe: gravity, electromagnetism, the strong force (which holds together protons and neutrons in atomic nuclei) and the weak force (which plays a role in nuclear decay).
—Will Sullivan, Smithsonian Magazine, 11 Apr. 2024
See all Example Sentences for neutron
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“Neutron.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/neutron. Accessed 29 May. 2024.
Copy CitationKids Definition
neutron
noun
neu·tron
ˈn(y)ü-ˌträn 
: an uncharged atomic particle that has a mass nearly equal to that of the proton and is present in all known atomic nuclei except the hydrogen nucleus
Medical Definition
neutron
noun
neu·tron
ˈn(y)ü-ˌträn
: an uncharged elementary particle that has a mass nearly equal to that of the proton and is present in all known atomic nuclei except the hydrogen nucleus
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