Anion
//ˈænˌaɪ.ən//
"Anion" in a Sentence (4 examples)
A cation is a positively charged ion, with more protons than electrons, while an anion is negatively charged, with more electrons than protons.
A displacement reaction is a chemical reaction in which the cation or anion of one reactant is replaced by one from another reactant.
An oxyanion is an anion that contains the element oxygen.
In chemistry, a phosphate is an anion, salt, functional group or ester derived from a phosphoric acid.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.