| 单词 | plaster of paris | 
| 释义 | plaster of paris [`plas·tǝr ǝv `par·ǝs]  INORGANIC CHEMISTRY White powder consisting essentially of the hemihydrate of calcium sulfate (CaSO4⋅1/2H2O or 2CaSO4⋅H2O), produced by calcining gypsum until it is partially dehydrated; forms with water a paste that quickly sets; used for casts and molds, building materials, and surgical bandages. Also known as calcined gypsum.  | 
	
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