pet·ro·la·tum (pět'rə-lā'təm, -lä'təm) n. See petroleum jelly. [From petrol.] |
| petroleum jelly n. A colorless-to-amber semisolid mixture of hydrocarbons obtained from petroleum and used in lubricants and medicinal ointments. Also called petrolatum. |
petrolatum pet·ro·la·tum (pět'rə-lā'təm)
n.
See petroleum jelly.
petrolatum
translucent, yellowish to amber or white, unctuous substance having almost no odour or taste, derived from petroleum and used principally in medicine and pharmacy as a protective dressing and as a substitute for fats in ointments and cosmetics. It is also used in many types of polishes and in lubricating greases, rust preventives, and modeling clay.
Learn more about petrolatum with a free trial on Britannica.com.