noun

ion

ion

An ion is an atom with an electric charge.

An ion is an atom with an electric charge.

Sodium ions are important for nerve function.

Sodium ions are important for nerve function.

an ion ((is sth.)) definition of an ion An ion is an atom with an electric charge.

((adjective)) ions a specific type of ion Sodium ions are important.

Synonyms: charged particle

From Greek 'ion' meaning 'going', because ions 'go' or move towards an electrode.

Think 'I am on the move', like a charged particle that is always moving.

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