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cation

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cation

Main Entry:: cat·ion
Pronunciation:: \ˈkat-ˌī-ən, ˈka-(ˌ)tī-ən\
Function:: noun
Etymology:: Greek kation, neuter of katiōn, present participle of katienai to go down, from kata- cata- + ienai to go — more at issue
Date:: 1834

: the ion in an electrolyzed solution that migrates to the cathode ; broadly : a positively charged ion

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