hydronium ion

[hahy-droh-nee-uhm ahy-uhn, ahy-on]

noun

1. the hydrogen ion bonded to a molecule of water, H 3 O + , the form in which hydrogen ions are found in aqueous solution.

hydronium ion

/ haɪˈdrəʊnɪəm /

noun

1. chem another name for hydroxonium ion

Word History and Origins

Origin of hydronium ion¹

First recorded in 190510; < German Hydronium, contraction of Hydroxonium; hydro- ², oxonium compound

Word History and Origins

Origin of hydronium ion¹

C20: from _hydro- + ( _amm ) _onium