neutron
noun /ˈnjuːtrɒn/
/ˈnuːtrɑːn/
(physics)- 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, protonWordfinderTopics Physics and chemistryc2
- antiparticle
- atom
- electron
- ion
- neutron
- nucleus
- particle
- positron
- proton
- valency
Oxford Collocations DictionaryNeutron is used before these nouns:- bomb
Word Originearly 20th cent.: from neutral + -on.