hydronium(redirected from H3O+ ion)
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the hydrated proton H3O+; it is the form in which the proton (hydrogen ion, H+) exists in aqueous solution, a combination of H+ and H2O.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
the hydrated proton, H3O+, a form in which hydrogen ion exists in aqueous solutions; also, H3O+·H2O, H3O+·2H2O, etc.
Synonym(s): oxonium ion
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