Definition of neutron noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈnjuːtrɒn//
; NAmE NAmE//ˈnuːtrɑːn//
(physics) Molecules and matter
jump to other results
a very small piece of matter (= a substance) that carries no electric charge and that forms part of the nucleus (= central part) of an atom see also electron, proton Wordfinderantiparticle, atom, electron, ion, neutron, nucleus, particle, positron, proton, valency See related entries: Molecules and matter Word Originearly 20th cent.: from neutral + -on.
See the Oxford Advanced American Dictionary entry: neutron

Other results

All matches