carboxylic acid

noun

: an organic acid (such as acetic acid) containing one or more carboxyl groups

Examples of carboxylic acid in a Sentence

Recent Examples on the Web
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Mosquitoes are drawn to lactic acid, ammonia and uric acid in perspiration, USA Today notes, along with skin concentrations of steroids, cholesterol and carboxylic acids. Ryan Brennan may 1, Sacbee.com, 1 May 2026 High skin concentrations of steroids, cholesterol and carboxylic acids also draw bites. Ryan Brennan, Miami Herald, 1 May 2026 However, these results are also less conclusive than the carboxylic acid link. Scott Travers, Forbes.com, 5 Mar. 2026 Follow up laboratory experiments confirmed that these molecules are long-chain carboxylic acids. Discover Magazine, 26 Mar. 2025 In some instances, both aldehyde and carboxylic acid molecules are present. Sarah Kuta, Smithsonian Magazine, 1 Nov. 2024

Word History

First Known Use

1868, in the meaning defined above

Time Traveler
The first known use of carboxylic acid was in 1868

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Cite this Entry

“Carboxylic acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/carboxylic%20acid. Accessed 4 Jul. 2026.

Medical Definition

carboxylic acid

noun
: an organic acid (as an acetic acid) containing one or more carboxyl groups

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