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3 definitions found
 for anion
From The Collaborative International Dictionary of English v.0.48 :

  Anion \An"i*on\, n. [Gr. ?, neut. ?, p. pr. of ? to go up; ? up
     + ? to go.] (Chem.)
     An electro-negative atom or group of atoms, or the element
     which, in electro-chemical decompositions, is evolved at the
     anode; -- opposed to cation. --Faraday.
     [1913 Webster]

From WordNet (r) 3.0 (2006) :

      n 1: a negatively charged ion

From Moby Thesaurus II by Grady Ward, 1.0 :

  51 Moby Thesaurus words for "anion":
     acid, acidity, agent, alkali, alkalinity, alloisomer, antacid,
     atom, base, biochemical, cation, chemical, chemical element,
     chromoisomer, compound, copolymer, dimer, electrocoating,
     electroetching, electrogalvanization, electrogilding,
     electrograving, electrolysis, electrolyte, electroplating, element,
     galvanization, heavy chemicals, high polymer, homopolymer,
     hydracid, inorganic chemical, ion, ionization, ionogen, isomer,
     macromolecule, metamer, molecule, monomer, neutralizer, nonacid,
     nonelectrolyte, organic chemical, oxyacid, polymer, pseudoisomer,
     radical, reagent, sulfacid, trimer

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