Definition of "plaster of paris" []

• Anhydrous calcium sulphate, or calcined gypsum, which forms with water a paste which soon sets or hardens, and is used for casts, moldings, etc. The term is loosely applied to any plaster stone or species of gypsum. (noun)

Gnu Collaboartive International Dictionary of English: licensed under The Code Project Open License (CPOL)