ome·​ga-3 | \ ō-ˈmā-gə-ˈthrē How to pronounce omega-3 (audio) , -ˈmē-, -ˈme- \

Definition of omega-3

: being or composed of polyunsaturated fatty acids that have the final double bond in the hydrocarbon chain between the third and fourth carbon atoms from the end of the molecule opposite that of the carboxyl group and that are found especially in fish, fish oils, green leafy vegetables, and some nuts and vegetable oils — compare omega-6

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Other Words from omega-3

omega-3 noun

Examples of omega-3 in a Sentence

Recent Examples on the Web The scoop: Flaxseed is a great source of omega-3 fatty acids, making it a good way for vegetarians (or those who don't eat fish) to meet their needs. SELF, "19 Healthy, High-Fat Foods to Keep You Full and Satisfied," 8 Aug. 2019 Instead, try loading up on omega-3 fatty acids, vitamin E, and magnesium. Kara Wahlgren, Seventeen, "8 Tips To Help Make Your Cramps Suck Less," 17 Apr. 2020 The investigators did find some evidence that a low-salt diet reduced premature death among those with normal blood pressure, and that omega-3 fatty acids in food protected against heart attack and heart disease. Steven Reinberg,, "More evidence supplements won’t help the heart," 11 July 2019 Shellfish are a very high quality source of protein and omega-3 fatty acids. Curtis W. Marean, Scientific American, "When the Sea Saved Humanity," 1 Nov. 2012 Food from the sea is rich in omega-3 fatty acids and other fatty acids that promote the development of brain tissue. Doyle Rice, USA TODAY, "Neanderthals didn't just hunt mammoths. They actually knew how to fish, researchers discover.," 27 Mar. 2020 In order to maintain a healthy skin and coat, cats need to eat a diet of balanced nutrition, including omega-3 fatty acids and zinc, according to the Cornell Feline Health Center — so dry skin could indicate a diet deficiency. Alesandra Dubin, Good Housekeeping, "The Best Way to Treat Dry Skin on Cats, According to Veterinarians," 30 Dec. 2019 These oils, also called omega-3 fatty acids, are known to reduce triglycerides. Matthew Perrone, Fortune, "Fish Oil Drug Gets Key Nod for Wider FDA Approval to Treat Heart Disease," 15 Nov. 2019 The species is ground up and used in anything from health supplements rich with omega-3 fatty acids to high-end dog food. Washington Post, "Fish oil firm may be barred from fishing in Chesapeake Bay," 19 Dec. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'omega-3.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of omega-3

1967, in the meaning defined above

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Time Traveler for omega-3

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The first known use of omega-3 was in 1967

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Cite this Entry

“Omega-3.” Dictionary, Merriam-Webster, Accessed 27 Feb. 2021.

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More Definitions for omega-3


ome·​ga-3 | \ -ˈthrē How to pronounce omega-3 (audio) \

Medical Definition of omega-3

: being or composed of polyunsaturated fatty acids in which the first double bond in the hydrocarbon chain occurs between the third and fourth carbon atoms from the end of the molecule most distant from the carboxylic acid group and which are found especially in fish (as tuna and salmon), fish oils, green leafy vegetables, and some vegetable oils

Other Words from omega-3

omega-3 noun

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