plaster of Paris

Translations
plâtre de Paris
Definitions
Plaster of Paris is a quick-setting material made from gypsum that is used for casting, molding, and creating sculptures. It is formed by heating gypsum to about 150 degrees Celsius, which removes water and produces a fine powder that, when mixed with water, hardens into a solid form.
Words
plaster

noun
plâtre
Paris

proper noun
Paris