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Plaster of paris
noun
Definitions
Noun
- 1 A hemihydrate of calcium sulfate, made by calcining gypsum, that hardens when moistened and allowed to dry; used to make casts, molds and sculpture. uncountable
"Treatment of an acute occult dislocation of the ankle consists of immobilization in a snugly fitting plaster-of-paris cast, with little padding."
- 2 any of several gypsum cements; a white powder (a form of calcium sulphate) that forms a paste when mixed with water and hardens into a solid; used in making molds and sculptures and casts for broken limbs wordnet
Etymology
So named after a large gypsum deposit at Montmartre, Paris.
See also for "plaster of paris"
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