A carboxylic acid consisting of a hydrocarbon chain and a terminal carboxyl group, especially any of those occurring as esters in fats and oils.
- Soaps are created by the chemical reaction of a fatty acid with an alkali metal hydroxide.
- The carboxyl group on the fatty acid contributes some water solubility to the molecule.
- The cellulose is digested by the bacteria and they supply the animals with short chain fatty acids.
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Syllabification: fat·ty ac·id
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