oxonium ion
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Related to oxonium ion: oxonium salt
oxonium ion
[äk′sō·nē·əm ′ī‚än] (chemistry)
R3O+A cation in which an oxygen atom is covalently bound to three atoms or groups of atoms.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.