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 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 Antacids contain earth metals, including calcium, sodium, magnesium, and aluminum, that react with hydrogen ions to help neutralize stomach acid. Sara Hoffman, Pharmd, Verywell Health, 2 July 2024 However, the collected samples showed less hydrogen ions than usual, making the rain more basic than expected. Kasha Patel, Washington Post, 19 June 2024 See all Example Sentences for hydrogen ion 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'hydrogen ion.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1896, in the meaning defined at sense 1

Time Traveler
The first known use of hydrogen ion was in 1896

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 5 Nov. 2024.

Kids Definition

hydrogen ion

noun
: the positive ion of acids that consists of a hydrogen atom whose electron has been transferred to the negative ion of the acid

Medical Definition

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

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