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4 definitions found

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

 cat·ion /ˈkætˌaɪən, ˈkæ(ˌ)taɪən/

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

 cat·ion /ˈkætˌaɪən/ 名詞

From: Webster's Revised Unabridged Dictionary (1913)

 Cat·i·on n.  Chem. a positively charged atom, radical, or molecule, which in electrolysis migrates to the cathode; a positive ion; -- opposed to anion.

From: WordNet (r) 2.0

      n : a positively charged ion