neutron
noun
an elementary particle having no charge, mass slightly greater than that of a proton, and spin of ½: a constituent of the nuclei of all atoms except those of hydrogen. n
neutrons
-
pluralof neutron.plural
The grammatical form denoting more than one person, place, thing, or idea.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
During the r-process, atomic nuclei rapidly absorb free neutrons.
From Science Daily ● Jul. 8, 2026
Helium-3 is an isotope of helium, defined by the number of neutrons in the atom's nucleus.
From BBC ● Jun. 16, 2026
The strong force binds quarks together inside protons, neutrons, and other particles.
From Science Daily ● May 19, 2026
Fermions are a broad class of particles that includes familiar examples such as electrons, protons, and neutrons.
From Science Daily ● Apr. 25, 2026
The remaining neutrons would have decayed into protons, which are the nuclei of ordinary hydrogen atoms.
From "A Brief History of Time: And Other Essays" by Stephen Hawking
