noun, noun which may take the genitive case particle 'no'
gypsum; plaster; calcium sulfate
Refers to the mineral gypsum (calcium sulfate dihydrate) and its calcined form, plaster of Paris. Common in contexts like sculpture, construction, and medical casts.
石膏で型を取る。
Make a mold with plaster.
骨折した腕を石膏で固める。
Set a broken arm in a plaster cast.
Lime plaster used for walls; 石膏 is gypsum plaster, often for molds and casts.
From Chinese 石膏 (shígāo), literally 'stone paste/oil', referring to the mineral gypsum.