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Meaning of GYPSUM

Pronunciation:  'jipsum

WordNet Dictionary
 
 Definition: [n]  a common white or colorless mineral (hydrated calcium sulphate) used to make cements and plasters (especially plaster of Paris)
 
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 See Also: alabaster, atomic number 20, Ca, calcium, mineral, plaster, plaster of Paris, terra alba

 

 

Webster's 1913 Dictionary
 
 Definition: 
\Gyp"sum\, n. [L. gypsum, Gr. ?; cf. Ar. jibs plaster,
mortar, Per. jabs?n lime.] (Min.)
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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