ALL meanings of neutron
neu·tron
N n - noun neutron physics: chargeless particle 1
- noun neutron A subatomic particle of about the same mass as a proton but without an electric charge, present in all atomic nuclei except those of ordinary hydrogen. 1
- noun neutron 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. Symbol: n. 1
- countable noun neutron A neutron is an atomic particle that has no electrical charge. 0
- noun neutron a neutral elementary particle with a rest mass of 1.674 92716 × 10–27 kilogram and spin 1⁄2; classified as a baryon. In the nucleus of an atom it is stable, but when free it decays 0
- noun neutron an uncharged nucleon having a mass of c. 1.675×10-27 kg (c. 939.5729 MeV/c2, c. 1,839 times the mass of an electron): a free neutron, as in nuclear fission, has a half-life of c. 14.8 minutes, is readily absorbed by a nucleus, and decays into a proton, an electron, and a neutrino 0