A distillation product of petroleum, especially one used as a lubricant, moisturizer, or laxative.
- Beware of products that contain petroleum or mineral oils; they will damage your leather goods over time.
- Products produced from petroleum, such as mineral oils, are classified as petrochemical pollutants.
- As a general rule, you should try to avoid facial creams that contain mineral oils, which are petroleum-based, because they might leave a greasy film on your skin and clog your pores as a result.
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Syllabification: min·er·al oil
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