Definition, Meaning & Synonyms
ion
noun
ˈaɪ.ɒn

Definition
An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.

Examples
- The sodium ion is essential for nerve function.
- Calcium ions are crucial for muscle contraction.
- Chloride ions help maintain the body’s fluid balance.

Meaning
Ions are charged particles that play important roles in chemical reactions and physical processes.

Synonyms
- Charged particle
- Atom
- Molecule