electron
noun /ɪˈlektrɒn/
/ɪˈlektrɑːn/
(physics)- a very small piece of matter (= a substance) with a negative electric charge, found in all atoms see also neutron, protonWordfinderTopics Physics and chemistryc1
- antiparticle
- atom
- electron
- ion
- neutron
- nucleus
- particle
- positron
- proton
- valency
Oxford Collocations DictionaryElectron is used before these nouns:- beam
- microscope
- transfer
- …
Word Originlate 19th cent.: from electric + -on.