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