(n.) 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.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). petrolatum. Retrieved September 26, 2026, from http://smartdefine.org/petrolatum/definitions/2044414 |
| Chicago | Webster's. 2011. "petrolatum" http://smartdefine.org/petrolatum/definitions/2044414 (accessed September 26, 2026). |
| Harvard | Webster's 2011, petrolatum, Smart Define, viewed 26 September, 2026, <http://smartdefine.org/petrolatum/definitions/2044414>. |
| MLA | Webster's. "petrolatum" 27 May 2011. Web. 26 September 2026. <http://smartdefine.org/petrolatum/definitions/2044414> |