plaster of paris

Noun
  1. is a type of: calcium sulfate, calcium sulphate - a white salt (CaSO4)
    subtypes: gesso - gypsum or plaster of Paris spread on a surface to make it suitable for painting or gilding (or a surface so prepared)
    substance holonym: gypsum - a common white or colorless mineral (hydrated calcium sulphate) used to make cements and plasters (especially plaster of Paris)
    same as: plaster

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