from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of a large group of monobasic acids, especially those found in animal and vegetable fats and oils, having the general formula CnH2n+1COOH. Characteristically made up of saturated or unsaturated aliphatic compounds with an even number of carbon atoms, this group of acids includes palmitic, stearic, and oleic acids.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of a class of aliphatic carboxylic acids, of general formula CnH2n+1COOH, that occur combined with glycerol as animal or vegetable oils and fats. Only those with an even number of carbon atoms are normally found in natural fats.

from the GNU version of the Collaborative International Dictionary of English

  • adj. any one of the paraffin series of monocarbonic acids, as formic acid, acetic, etc.; -- so called because the higher members, as stearic and palmitic acids, occur in the natural fats, and are themselves fatlike substances.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. any of a class of aliphatic monocarboxylic acids that form part of a lipid molecule and can be derived from fat by hydrolysis; fatty acids are simple molecules built around a series of carbon atoms linked together in a chain of 12 to 22 carbon atoms


Sorry, no etymologies found.


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  • In case you didn’t know, trans fats give your body a free-radical bath every time you eat them and block precious essential fatty acid EFAs uptake in the cells—wreaking havoc on hormone activity and causing inflammation, according to Udo Erasmus, PhD, author of Fats That Heal, Fats That Kill.

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  • Nutrition was one area, for example, where he might have done some immediately salubrious work, but, alas, there were few diets on Earth so perfect for rusting out the machinery as the starch-and-sugar blizzard, the fatty acid monsoon of prison fare.

    La insistencia de Jürgen Fauth

  • Add a couple of tablespoons of good oil, such as virgin coconut (energizing, slimming, and antifungal) or hemp seed oil (full of the fatty acid GLA, which is anti-inflammatory and great for the skin).

    The Truth About Beauty

  • Other research shows that higher dietary intake of omega-3: Omega-3 polyunsaturated fatty acid intake and islet autoimmunity in children at increased risk for type-1 diabetes.

    The Autoimmune Epidemic

  • Conjugated linoleic acid is a form of the essential fatty acid linoleic acid, found primarily in animal foods.

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