fatty acid

noun

1
: any of numerous saturated aliphatic monocarboxylic acids CnH2n+1COOH (such as acetic acid) including many that occur naturally usually in the form of esters in fats, waxes, and essential oils
2
: any of the saturated or unsaturated monocarboxylic acids (such as palmitic acid) usually with an even number of carbon atoms that occur naturally in the form of glycerides in fats and fatty oils

Examples of fatty acid in a Sentence

Recent Examples on the Web
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Omega-3s Omega-3 essential fatty acids are anti-inflammatory — and are believed to help reduce neuroinflammation and heart disease risk (and what’s good for the heart is also good for the brain). Heather Sandison, Contributor, CNBC, 4 Mar. 2025 Omega-3 fatty acids, vitamin D, and other nutrients abundant in fish offer anti-inflammatory and neuroprotective benefits. Tom Gavin, EverydayHealth.com, 4 Mar. 2025 For example, piperine (found in black pepper) or fatty acids may be added to improve absorption.9 How Do Their Health Benefits Compare? Curcumin, as a single ingredient, is only available as a supplement. Merve Ceylan, Health, 3 Mar. 2025 Omega-3 fatty acids, especially DHA and EPA, are integral for brain cells to remain healthy and function properly. Allison Herries, Verywell Health, 27 Feb. 2025 See All Example Sentences for fatty acid

Word History

First Known Use

1838, in the meaning defined at sense 1

Time Traveler
The first known use of fatty acid was in 1838

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Cite this Entry

“Fatty acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fatty%20acid. Accessed 13 Mar. 2025.

Kids Definition

fatty acid

noun
: any of numerous acids that contain only carbon, hydrogen, and oxygen and occur naturally in fats and various oils

Medical Definition

fatty acid

noun
1
: any of numerous saturated aliphatic acids CnH2n+1COOH (as lauric acid) containing a single carboxyl group and including many that occur naturally usually in the form of esters in fats, waxes, and essential oils
2
: any of the saturated or unsaturated organic acids (as palmitic acid) that have a single carboxyl group and usually an even number of carbon atoms and that occur naturally in the form of glycerides in fats and fatty oils

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