plaster of Paris
English
Etymology
So called after a large gypsum deposit at Montmartre in Paris.
Noun
plaster of Paris (uncountable)
- A hemihydrate of calcium sulfate, made by calcining gypsum, that hardens when moistened and allowed to dry; used to make casts, molds and sculpture.
Synonyms
- plaster (short form)
Translations
hemihydrate of calcium sulfate
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Further reading
- Gypsum plaster on Wikipedia.Wikipedia