American English

Definition of plaster noun from the Oxford Advanced American Dictionary



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  1. 1[uncountable] a substance made of lime, water, and sand that is put on walls and ceilings to give them a smooth hard surface an old house with crumbling plaster and a leaking roof
  2. 2(plaster of Paris) [uncountable] a white powder that is mixed with water and becomes very hard when it dries, used especially for making copies of statues or holding broken bones in place a plaster bust of Julius Caesar
See the Oxford Advanced Learner's Dictionary entry: plaster