: a monounsaturated fatty acid C18H34O2 obtained from natural fats and oils
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Extra-Virgin Olive Oil Olive oil is high in heart-healthy monounsaturated fats, particularly oleic acid, which has strong anti-inflammatory properties.
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Jillian Kubala, Health, 12 Mar. 2026
Patatua fruit oil and tsubaki seed oil (also known as camellia seed oil) are both rich in oleic acid and antioxidants to enhance shine and strengthen weak hair, which reduces breakage.
—Reece Andavolgyi, InStyle, 19 Jan. 2026
For example, oleic acid from cooking, squalene from human skin and bisphenol A from hard plastics can remain on surfaces for years if undisturbed.
—Katelyn Richard, The Conversation, 9 Jan. 2026
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, 22 Oct. 2025
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Jillian Kubala, Health, 12 Mar. 2026
Patatua fruit oil and tsubaki seed oil (also known as camellia seed oil) are both rich in oleic acid and antioxidants to enhance shine and strengthen weak hair, which reduces breakage.
—Reece Andavolgyi, InStyle, 19 Jan. 2026
For example, oleic acid from cooking, squalene from human skin and bisphenol A from hard plastics can remain on surfaces for years if undisturbed.
—Katelyn Richard, The Conversation, 9 Jan. 2026
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, 22 Oct. 2025
See All Example Sentences for oleic acid
Cite this Entry
“Oleic acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/oleic%20acid. Accessed 15 Mar. 2026.
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