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, protonTopics Physics and chemistryc2Oxford Collocations DictionaryNeutron is used before these nouns:
- bomb
Word Originearly 20th cent.: from neutral + -on.Definitions on the go
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neutron