ion

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ion carbonium ion hydrogen ion hydroxide hydroxyl ion ion channel ion exchange ion-exchange chromatography ion exchanger ion exchange resin

Main Entry: ion
Pronunciation: -n, -än
Function: noun
1 : an atom or group of atoms that carries a positive or negative electric charge as a result of having lost or gained one or more electrons -- see ANION, CATION
2 : a charged subatomic particle (as a free electron)