Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

  

anion

noun [C]
 
 
/ˈæn.aɪən/ specialized

Definition

an ion with a negative electrical chargeAtoms, molecules and sub-atomic particles
(Definition of anion noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
Focus on the pronunciation of anion