Examples of hydronium in a Sentence
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Laboratory work has shown that ice naturally contains ionic defects—hydronium (H₃O⁺) and hydroxide (OH⁻) ions.
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Tejasri Gururaj, Interesting Engineering, 30 Dec. 2025
The movement of each electron is timed and arranged just so to cause a proton in the form of a hydronium ion, which is positively charged, to head in the opposite direction.
—James Somers, The New Yorker, 25 Oct. 2022
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Tejasri Gururaj, Interesting Engineering, 30 Dec. 2025
The movement of each electron is timed and arranged just so to cause a proton in the form of a hydronium ion, which is positively charged, to head in the opposite direction.
—James Somers, The New Yorker, 25 Oct. 2022
Cite this Entry
“Hydronium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydronium. Accessed 15 Mar. 2026.
Copy CitationKids Definition
hydronium
noun
hy·dro·ni·um
hī-ˈdrō-nē-əm 
: an ion formed by the combination of a hydrogen ion with a water molecule
Medical Definition
hydronium
noun
hy·dro·ni·um
hī-ˈdrō-nē-əm
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