: a monounsaturated fatty acid C18H34O2 obtained from natural fats and oils

Examples of oleic acid in a Sentence

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Unfortunately, that notorious fabric yellowing is often unavoidable due to the combination of oleic acid, squalene, and other organic compounds found in your skin oil and sweat. Andrew Paul, Popular Science, 3 Sep. 2025 One older study found that diets rich in oleic acid may help reduce fasting blood sugar and insulin levels and increase insulin sensitivity.6 3. Christina Manian, Health, 3 Sep. 2025 Healthwise, cooking oil made from sunflowers is the preferred vegetable oil due to its unsaturated fats and, especially, its oleic acids that help increase good (HDL) cholesterol. Joshua Siskin, Oc Register, 2 Aug. 2025 Studies in animal models have also shown that oleic acid, a fatty acid found in olive oil, can enhance the function of the intestinal barrier by increasing the levels of beneficial bacteria in the gut, specifically Bifidobacteria. Angelica Bottaro, Verywell Health, 21 July 2025 See All Example Sentences for oleic acid

Word History

First Known Use

1819, in the meaning defined above

Time Traveler
The first known use of oleic acid was in 1819

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Cite this Entry

“Oleic acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/oleic%20acid. Accessed 9 Sep. 2025.

Medical Definition

oleic acid

noun
: a monounsaturated fatty acid C18H34O2 found in natural fats and oils

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