Dictionary

hydronium

noun hy·dro·ni·um \hī-ˈdrō-nē-əm\

Definition of HYDRONIUM

:  a hydrated hydrogen ion H3O+

Origin of HYDRONIUM

International Scientific Vocabulary hydr- + -onium
First Known Use: 1908

hydronium

noun hy·dro·ni·um \hī-ˈdrō-nē-əm\   (Medical Dictionary)

Medical Definition of HYDRONIUM

:  a hydrated hydrogen ion H3O+

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