Definition of hydroxonium ion in English:

hydroxonium ion

Syllabification: hy·drox·o·ni·um i·on
Pronunciation: /ˌhīdräkˈsōnēəm ˈīˌän


  • another term for hydronium ion.
    More example sentences
    • Further down this page, we shall calculate the concentration of hydroxonium ions present in pure water.
    • The trajectories of movement of the hydroxyl and hydroxonium ions are cycloids.
    • One assumes that it is the hydroxonium ions but is this necessarily the case?


1920s: hydroxonium from hydro- (relating to hydrogen) + oxy-2 + the suffix -onium (from ammonium).

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a slit made by cutting with a saw