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hydronium ion

 - 2 dictionary results

hy⋅dro⋅ni⋅um i⋅on

  [hahy-droh-nee-uhm]
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–noun
the hydrogen ion bonded to a molecule of water, H3O+, the form in which hydrogen ions are found in aqueous solution.
Also called oxonium ion.

Origin:
< G Hydronium (1907), contr. of Hydroxonium; see hydro- 2 , oxonium ion
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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hy·dro·ni·um   (hī-drō'nē-əm)   
n.  A hydrated hydrogen ion, H3O+. Also called hydronium ion.

[hydr(o)- + (amm)onium.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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