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English definition of “cation”

cation

noun [C]     /ˈkæt.aɪən/ specialized
in chemistry , an ion (= type of atom ) that has a positive electric charge and therefore moves towards the cathode (= negative part of electric cell ) during electrolysis Atoms, molecules and sub-atomic particles
(Definition of cation noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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