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English definition of “plaster”

plaster

noun     /ˈplɑːstər/
WALLS [U] a substance that is spread on walls in order to make them smooth Interior decorationBuilding materials
FOR CUTS [C] UK (US trademark Band-Aid) a small piece of sticky material that you put on cuts on your body Medical dressings, supports and devices
be in plaster UK (US be in a cast) If your arm or leg is in plaster, it is covered in a hard, white substance to protect a broken bone : She had her leg in plaster for three months after the accident .Medical dressings, supports and devices
(Definition of plaster noun from the Cambridge Learner's Dictionary © Cambridge University Press)

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