petrolatum


pet·ro·la·tum

noun \ˌpe-trə-ˈlā-təm, -ˈlä-\

Definition of PETROLATUM

Origin of PETROLATUM

New Latin, from Medieval Latin petroleum
First Known Use: 1887

pet·ro·la·tum

noun \ˌpe-trə-ˈlāt-əm, -ˈlät-\   (Medical Dictionary)

Medical Definition of PETROLATUM

: 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 also petroleum jelly, yellow petrolatum b : a white or faintly yellowish mass obtained by decolorizing yellow petrolatum and used similarly to it—called also petroleum jelly, white petrolatum, white petroleum jelly

Browse

Next Word in the Dictionary: petrolene
Previous Word in the Dictionary: petrolage
All Words Near: petrolatum

Seen & Heard

What made you want to look up petrolatum? Please tell us where you read or heard it (including the quote, if possible).