cat·ion /ˈkætˌaɪən, ˈkæ(ˌ)taɪən/
陽離子
cat·ion /ˈkætˌaɪən/ 名詞
陽離子,正離子,陰向離子
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.
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cation
n : a positively charged ion