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hydronium ion

[ hahy-droh-nee-uhm ahy-uhn ahy-on ]
/ haɪˈdroʊ ni əm ˌaɪ ən ˌaɪ ɒn /
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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.

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Also called ox·o·ni·um i·on [ok-soh-nee-uhm ahy-uhn, ahy-on] /ɒkˈsoʊ ni əm ˌaɪ ən, ˌaɪ ɒn/ .

Origin of hydronium ion

First recorded in 190510; <German Hydronium, contraction of Hydroxonium; see hydro-2, oxonium compound
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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British Dictionary definitions for hydronium ion

hydronium ion
/ (haɪˈdrəʊnɪəm) /

noun

chem another name for hydroxonium ion

Word Origin for hydronium ion

C20: from hydro- + (amm) onium
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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