fatty acid

noun

1

: any of numerous saturated aliphatic monocarboxylic acids C_nH_2n+1COOH (such as acetic acid) including many that occur naturally usually in the form of esters in fats, waxes, and essential oils

2

: any of the saturated or unsaturated monocarboxylic acids (such as palmitic acid) usually with an even number of carbon atoms that occur naturally in the form of glycerides in fats and fatty oils

Examples of fatty acid in a Sentence

Recent Examples on the Web

Fatty Fish Fatty fish are rich in omega-3 fatty acids, tryptophan (an amino acid), taurine, and polyamines. —Cathy Nelson, Verywell Health, 18 Dec. 2024

Rich in unsaturated fatty acids, research shows that consuming safflower oil in moderation may improve cholesterol levels, control blood sugar, and provide anti-inflammatory support. —Cristina Mutchler, Health, 17 Dec. 2024

Sardines can be a great source of omega-3 fatty acids, as well as calcium and vitamin D, which can be helpful for bone health. —Sara Novak, Discover Magazine, 13 Dec. 2024

Seed oils like canola, vegetable and sesame seed, which produce omega-6 fatty acids, are also widely used in food products. —Christopher O'Donnell, Orlando Sentinel, 10 Dec. 2024

Word History

First Known Use

1838, in the meaning defined at sense 1

Kids Definition

fatty acid

noun

: any of numerous acids that contain only carbon, hydrogen, and oxygen and occur naturally in fats and various oils

Medical Definition

fatty acid

noun

1

: any of numerous saturated aliphatic acids C_nH_2n+1COOH (as lauric acid) containing a single carboxyl group and including many that occur naturally usually in the form of esters in fats, waxes, and essential oils

2

: any of the saturated or unsaturated organic acids (as palmitic acid) that have a single carboxyl group and usually an even number of carbon atoms and that occur naturally in the form of glycerides in fats and fatty oils