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petrolatum: Meaning and Definition of

pet•ro•la•tum

Pronunciation: (pe"tru-lā'tum, -lä'-), [key]
— n.
  1. a yellowish or whitish, translucent, gelatinous, oily, semisolid, amorphous mass obtained from petroleum: used as a lubricant, rust preventive, in the manufacture of cosmetics, and in medicine as a protective dressing, emollient, and ointment base. Also called
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
See also:
petrol petrol bomb
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