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

Keep scrolling for more

Learn More about plaster of paris

Share plaster of paris

Statistics for plaster of paris

Look-up Popularity

Time Traveler for plaster of paris

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

See more words from the same century

Keep scrolling for more

More Definitions for plaster of paris

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

Keep scrolling for more

Comments on plaster of paris

What made you want to look up plaster of paris? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

by force of circumstances

Get Word of the Day daily email!

Test Your Vocabulary

Difficult Vocab Quiz

  • the-education-of-achilles-eugne-delacroix
  • Which is a synonym of discomfit?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!