PLASTER OF PARIS, a variety of calcined gypsum (calcium sulphate) which forms a hard cement when treated with water (see Cement). The substance obtained its name in consequence of being largely manufactured in the neighbourhood of Paris.
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PLASTER OF PARIS, a variety of calcined gypsum (calcium sulphate) which forms a hard cement when treated with water (see Cement). The substance obtained its name in consequence of being largely manufactured in the neighbourhood of Paris.