Meaning of GYPSUM
| Pronunciation: | | 'jipsum
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 WordNet Dictionary |
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| | 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 |
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| | 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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