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Definition of anion
: the ion in an electrolyzed solution that migrates to the anode; broadly : a negatively charged ion
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Recent Examples of anion from the Web
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The cathode splits the sea water into hydroxide anions and hydrogen gas, which releases electrodes.
These example sentences are selected automatically from various online news sources to reflect current usage of the word 'anion'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
Origin and Etymology of anion
Greek, neuter of aniōn, present participle of anienai to go up, from ana- + ienai to go — more at issue
Medical Dictionary
anion
play
noun
an·ion
\ˈan-ˌī-ən\
Medical Definition of anion
: the ion in an electrolyzed solution that migrates to the anode; broadly : a negatively charged ion
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