gypsum

7 ENTRIES FOUND:

gyp·sum

noun \ˈjip-səm\

: a white mineral that is used to make plaster of paris

Full Definition of GYPSUM

1
:  a widely distributed mineral consisting of hydrous calcium sulfate that is used especially as a soil amendment and in making plaster of paris
2
:  drywall

Origin of GYPSUM

Latin, from Greek gypsos
First Known Use: 14th century

gyp·sum

noun \ˈjip-səm\   (Medical Dictionary)

Medical Definition of GYPSUM

: a widely distributed mineral CaSO4·2H2O consisting of hydrous calcium sulfate that is used especially as a soil amendment and in making plaster of paris

gypsum

noun    (Concise Encyclopedia)

Common sulfate mineral, hydrated calcium sulfate (CaSO2HO), of great commercial importance. Deposits occur in many countries, but the U.S., Canada, France, Italy, and Britain are among the leading producers. Crude gypsum is used as a fluxing agent, soil conditioner, filler in paper and textiles, and retarder in portland cement. About three-fourths of the total production is calcined for use as plaster of paris and as building materials in plaster, board products, and tiles and blocks.

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