|Compare cation a negatively charged ion; an ion that is attracted to the anode during electrolysis|
|[C19: from |
anion an·i·on (ān'ī'ən)
A negatively charged ion, especially one that migrates to the anode in electrolysis.
An ion with net negative charge, having more electrons than protons. In electrolysis, anions migrate to a positively charged anode. Compare cation.