hydrogen ion
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noun
ionized hydrogen of the form H+, found in aqueous solutions of all acids.
Nearby words
Origin of hydrogen ion
First recorded in 1895–1900
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for hydrogen ion
It is very likely that in aqueous acids, a large proportion, at least, of the hydrogen-ion is similarly combined with water.
That is, different concentrations of hydrogen-ion or of hydroxide-ion are required to change their colors.
The hydrogen-ion will very decidedly reduce the concentration of the acetate-ion, acetic acid being a weak acid (table, p. 104).
British Dictionary definitions for hydrogen ion
hydrogen ion
noun
an ionized hydrogen atom, occurring in plasmas and in aqueous solutions of acids, in which it is solvated by one or more water molecules; proton. Formula: H +
an ionized hydrogen molecule; hydrogen molecular ion. Formula: H 2 +
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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