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1. (n.) gypsum
a soft mineral, hydrous calcium sulfate, CaSO
Etymology: (1640–50; < L < Gk gýpsos chalk, gypsum)
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| Definition of 'gypsum' |
Princeton's WordNet |
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1. (noun) gypsum
a common white or colorless mineral (hydrated calcium sulphate) used to make cements and plasters (especially plaster of Paris)
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| Definition of 'gypsum' |
Webster Dictionary |
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1. (noun) gypsum
a mineral consisting of the hydrous sulphate of lime (calcium). When calcined, it forms plaster of Paris. Selenite is a transparent, crystalline variety; alabaster, a fine, white, massive variety
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Definitions of gypsum 
