plaster of paris

noun phrase, often capitalized second P plaster of par·is \ -ˈper-əs , -ˈpa-rəs \

Definition of plaster of paris

: a white powdery slightly hydrated calcium sulfate CaSO₄·¹/₂H₂O or 2CaSO₄·H₂O made by calcining gypsum and used chiefly for casts and molds in the form of a quick-setting paste with water

Origin and Etymology of plaster of paris

Paris, France

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First Known Use: 15th century

in the meaning defined above

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PLASTER OF PARIS Defined for Kids

plaster of paris

noun, often capitalized 2nd P plaster of par·is \ -ˈper-əs \

Definition of plaster of paris for Students

: a white powder that mixes with water to form a paste that hardens quickly and is used for casts and molds

Medical Dictionary

plaster of paris

noun plaster of par·is \ -ˈpar-əs \

medical Definition of plaster of paris

: a white powdery slightly hydrated calcium sulfate CaSO₄·¹/₂H₂O or 2CaSO₄·H₂O that is made by calcining gypsum, forms a quick-setting paste with water, and is used in medicine chiefly in casts and for surgical bandages