nucleons From WikiWord, the free dictionary English Contents DefinitionsRelated wordsReferences DefinitionsnounOne of the subatomic particles of the atomic nucleus, i.e. a proton or a neutron. Related wordsSynonymsnucleinucleinneutronsnucleusesnucleonicsnucleosomenucleolarnucleusnuclealprotonsnucleoplasmnucleicnucleosynthesisneutrinosnuclidesnucleoli References Wiktionary — nucleons Wikipedia — nucleons