ion
noun
a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons
Source: WordNet 3.1, Princeton University
Ion meaning
What does “ion” mean? Definitions, examples, synonyms and opposites.
“ion” is a noun with one meaning. Its most common meaning is: a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons.