hydrogen ion
noun
1
: the cation H+ of acids consisting of a hydrogen atom whose electron has been transferred to the anion of the acid
2
Examples of hydrogen ion in a Sentence
Recent Examples on the Web
The epoch of reionization describes the period from 680 million years to 1.1 billion years after the Big Bang, during which high-energy light began to strip electrons away from hydrogen ions, allowing light to travel freely once more.
—
Robert Lea, Space.com, 17 Jan. 2025
The hydrogen ions, however, go on to help create ATP and NADPH, molecules that provide energy and electrons for the next stage.
—Cody Cottier, Discover Magazine, 4 Nov. 2024
Then the breakdown of muscle glycogen that produces energy also results in the making of lactate plus a hydrogen ion.
—Kristen Rogers, CNN, 9 Aug. 2024
The lower this number is, the more hydrogen ions there are and the more acidic the environment is.
—Sara Hoffman, Pharmd, Verywell Health, 2 July 2024
See all Example Sentences for hydrogen ion 
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Robert Lea, Space.com, 17 Jan. 2025
The hydrogen ions, however, go on to help create ATP and NADPH, molecules that provide energy and electrons for the next stage.
—Cody Cottier, Discover Magazine, 4 Nov. 2024
Then the breakdown of muscle glycogen that produces energy also results in the making of lactate plus a hydrogen ion.
—Kristen Rogers, CNN, 9 Aug. 2024
The lower this number is, the more hydrogen ions there are and the more acidic the environment is.
—Sara Hoffman, Pharmd, Verywell Health, 2 July 2024
See all Example Sentences for hydrogen ion
Dictionary Entries Near hydrogen ion
Cite this Entry
“Hydrogen ion.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hydrogen%20ion. Accessed 6 Feb. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share