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a purified mixture of semisolid hydrocarbons obtained from petroleum, used as a base for ointments, protective dressings, and soothing applications to the skin. Called also petroleum jelly.
liquid petrolatum see mineral oil.
A mixture of liquid hydrocarbons obtained from petroleum. This mixture is used as a vehicle for medicinal substances for local applications. Light petrolatum is employed as a topical spray, whereas heavy petrolatum was once used internally to treat constipation.Synonym: mineral oil
See also: petrolatum