Definition of calcium sulfate
: a white salt CaSO4 that occurs especially as anhydrite, gypsum, and plaster of paris and that in hydrated form is used as a building material and in anhydrous form is used as a drying agent
First Known Use of calcium sulfate
Medical Definition of calcium sulfate
: a white calcium salt CaSO4 used especially as a diluent in tablets and in hydrated form as plaster of paris
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