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4 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 an·ion /ˈæˌnaɪən/
 陰離子

From: DICT.TW English-Chinese Medical Dictionary 英漢醫學字典

 an·ion /ˈænˌaɪən/ 名詞
 陰離子

From: Webster's Revised Unabridged Dictionary (1913)

 An·i·on n.  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.
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From: WordNet (r) 2.0

 anion
      n : a negatively charged ion