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English definition of “ion”


noun [C]     /ˈaɪ.ɒn/ US  /-ɑːn/ specialized
an atom or small group of atoms that has an electrical charge because it has added or lost one or more electrons → See also the ionosphereAtoms, molecules and sub-atomic particles ionic     /aɪˈɒn.ɪk/ US  /-ˈɑː.nɪk/ adjective ionic bonding Atoms, molecules and sub-atomic particles
(Definition of ion noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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