Naphthene-base oil refers to a type of mineral oil that is derived from petroleum sources and consists of saturated hydrocarbons. There are several synonyms that can be used to refer to this type of oil, including naphthenic oil, white oil, liquid paraffin, and mineral oil. Naphthenic oil is often used to lubricate machinery and equipment due to its high viscosity and thermal stability. White oil, on the other hand, is commonly used in the cosmetics industry as an ingredient in products such as lotions and creams. Liquid paraffin is a medical-grade oil that is used as a laxative or in the treatment of dry skin conditions. Mineral oil is a general term used to describe any type of oil that is derived from a mineral source, including naphthene-base oil.