These example sentences are selected automatically from various online news sources to reflect current usage of the word 'petrolatum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.
: a neutral unctuous substance that is practically odorless and tasteless and is insoluble in water, that is obtained from petroleum and differs chemically from paraffin wax in containing unsaturated hydrocarbons or naphthenes as well as alkanes, and that is produced in several forms: as
a: a yellowish to light amber semisolid mass used chiefly as a base for ointments and cosmetics, as a protective dressing, and in lubricating greases
—called alsopetroleum jelly, yellow petrolatum
b: a white or faintly yellowish mass obtained by decolorizing yellow petrolatum and used similarly to it
—called alsopetroleum jelly, white petrolatum, white petroleum jelly