gyp·sum /ˈʤɪpsəm/
石膏(vt.)用石膏處理
gyp·sum /ˈʤɪpsəm/ 名詞
Gyp·sum n. 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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gypsum
n : a common white or colorless mineral (hydrated calcium
sulphate) used to make cements and plasters (especially
plaster of Paris)