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

First Known Use of plaster of paris

15th century, in the meaning defined above

History and Etymology for plaster of paris

Paris, France

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The first known use of plaster of paris was in the 15th century

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More Definitions for plaster of paris

plaster of paris

noun

English Language Learners Definition of plaster of paris

: a white powder that is mixed with water to form a paste which hardens quickly and which is used for making decorations, plaster casts, etc.

plaster of paris

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

Kids Definition of plaster of paris

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

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

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More from Merriam-Webster on plaster of paris

Rhyming Dictionary: Words that rhyme with plaster of paris

Nglish: Translation of plaster of paris for Spanish Speakers

Britannica.com: Encyclopedia article about plaster of paris

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