hydrogen ion

noun

1. ionized hydrogen of the form H + , found in aqueous solutions of all acids.

hydrogen ion

noun

1. 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 ⁺
2. an ionized hydrogen molecule; hydrogen molecular ion. Formula: H 2 ⁺

Word History and Origins

Origin of hydrogen ion¹

First recorded in 1895–1900

Example Sentences

The Illinois group performed calculations based on graphene irradiated with hydrogen ions -- bare protons -- and computed how secondary electrons were released over time and their resulting energy spectrum.

From Science Daily

The changes in molecular vibrations of the pMBA molecules, which vary with hydrogen ion adsorption, serve the function of memory and nonlinear waveform transformation for calculation.

From Science Daily

The liquid lithium absorbed around 40% of hydrogen ions escaping from the plasma so that fewer of these particles were recycled back into the plasma as a relatively cold neutral gas.

From Science Daily

The electrically charged hydrogen ions strip oxygen atoms away from the iron much faster than does hydrogen gas.

From Science Magazine

However, some hydrogen ions may get neutralized and escape from the plasma.

From Science Daily