Petrolatum

n.

1.

(Chem. & Pharm.) A semisolid unctuous substance, neutral, and without taste or odor, derived from petroleum by distilling off the lighter portions and purifying the residue. It is a yellowish, fatlike mass, transparent in thin layers, and somewhat fluorescent. It is used as a bland protective dressing, and as a substitute for fatty materials in ointments.

Noun

1.

petrolatum - a semi-solid mixture of hydrocarbons obtained from petroleum; used in medicinal ointments and for lubrication Synonyms: mineral jelly, petroleum jelly

cordite, jelly, mineral jelly, mixture, petrolatum gauze, petroleum jelly, Vaseline