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单词 petrolatum
释义

WordReference Random House Unabridged Dictionary of American English © 2024
pet•ro•la•tum  (pe′trə lātəm, -lä-),USA pronunciation n. 
  1. Chemistry, Drugsa 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 petroleum jelly. 
  • Neo-Latin; see petroleum, -ate2
  • 1885–90, American.

Collins Concise English Dictionary © HarperCollins Publishers::
petrolatum /ˌpɛtrəˈleɪtəm/ n
  1. a translucent gelatinous substance obtained from petroleum; used as a lubricant and in medicine as an ointment base and protective dressing
    Also called: mineral jelly, petroleum jelly
Etymology: 19th Century: from petrol + Latin -atum -ate1
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