ionnoun [ C ]
uk/ˈaɪ.ɒn/us/ˈaɪ.ɑːn/specializedan atom or small group of atoms that has an electrical charge because it has added or lost one or more electrons
See also
the ionosphere
Thesaurus: synonyms and related words
Physics: atoms, molecules & sub-atomic particles
- acceptor
- antilepton
- antimatter
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- antiparticle
- cation
- disaccharide
- elementary particle
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- ionize
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- macromolecule
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ionic
adjective uk/aɪˈɒn.ɪk/us/aɪˈɑː.nɪk/
ionic bonding