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 Mosquito traps: Mosquito traps often attract mosquitoes using human scent (lactic acid, ammonia, or carboxylic acids). Cori Sears, The Spruce, 30 Apr. 2026 The researchers noted that the most attractive skin samples had significantly more carboxylic acids present. Scott Travers, Forbes.com, 5 Mar. 2026 Alpha hydroxy acids, including glycolic acid, lactic acid, sodium pyrrolidine, and carboxylic acid: These acids are organic and can break down dead skin cells. Angelica Bottaro, Verywell Health, 4 June 2025 Follow up laboratory experiments confirmed that these molecules are long-chain carboxylic acids. Discover Magazine, 26 Mar. 2025 In yellow feathers, the chains ended with a different molecule called carboxylic acid. 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 13 May. 2026.

Medical Definition

carboxylic acid

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

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