fish oil

noun

: a fatty oil from the bodies of various fishes (such as menhaden or sardines) that contains large amounts of unsaturated fatty acids and is used as a dietary supplement and in making various products (such as cosmetics and paints)

Examples of fish oil in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Take nutritional supplements: Speak to your healthcare provider about supplements that contain essential fatty acids, like fish oil, which might help decrease dry eye symptoms. Sarah Bence, Health, 23 Mar. 2025 Omega-3 supplements may include fish oil from shellfish, which is a common allergen. Melissa Nieves, Verywell Health, 18 Mar. 2025 Made from the tissue of oily fish (like the ones above), fish oil is just a straight, potent stuff filled with a mix of fatty acids, including eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Alessandra Signorelli, Vogue, 11 Mar. 2025 Krill oil is a fish oil alternative made from tiny shrimp-like crustaceans, a dietary staple for Antarctic wildlife such as whales and birds. Stephanie Brown, Verywell Health, 27 Feb. 2025 See All Example Sentences for fish oil

Word History

First Known Use

1785, in the meaning defined above

Time Traveler
The first known use of fish oil was in 1785

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Cite this Entry

“Fish oil.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/fish%20oil. Accessed 1 Apr. 2025.

Medical Definition

fish oil

noun
: a fatty oil that is obtained from oily fish (such as herring or menhaden), contains large amounts of unsaturated fatty acids, and is used as a dietary supplement and in making various products (such as protective coatings, cosmetics, and animal feed)
Scientists learned some time ago that there are significant health benefits from consuming omega-3 fatty acids, which are found mostly in fish oils, algal oils, and linseed oil.Felicia M. Willis, Today's Chemist at Work

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