cation Syllabification: (cat·i·on)Pronunciation: /ˈkatˌīən, -ˌīˌän/Definition of cation noun Chemistry a positively charged ion, i.e., one that would be attracted to the cathode in electrolysis. The opposite of anion.Derivatives cationicPronunciation: /ˌkatīˈänik/ adjective Origin: mid 19th century: from cata- 'alongside' or from cathode, + ioncation in other Oxford dictionaries Definition of cation in the British & World English dictionary
