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Dictionary

pet•ro•la•tum

Pronunciation: (pe"tru-lā'tum, -lä'-), [key]
—n.
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 petro'leum jel'ly.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

petrol

petrolene

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