| NOUN | substance | fatty acid | any of a class of aliphatic monocarboxylic acids that form part of a lipid molecule and can be derived from fat by hydrolysis |
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| Meaning | 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. | |
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| Narrower | saturated fatty acid | A fatty acid whose carbon chain cannot absorb any more hydrogen atoms |
| trans fatty acid | A fatty acid that has been produced by hydrogenating an unsaturated fatty acid (and so changing its shape) | |
| unsaturated fatty acid | A fatty acid whose carbon chain can absorb additional hydrogen atoms | |
| Broader | carboxylic acid | An organic acid characterized by one or more carboxyl groups |
| Spanish | ácido graso | |
| Catalan | àcid gras | |
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