Definition of fish oil
: a fatty oil from the bodies of various fishes (as menhaden or sardines) that contains large amounts of unsaturated fatty acids and is used in making various products (as cosmetics and paints)
First Known Use of fish oil
Medical Definition of fish oil
: 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, October 2004>
Learn More about fish oil
Britannica.com: Encyclopedia article about "fish oil"
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