焼しょう石せっ膏こう

also: やきせっこう

しょ

う

せ

っ

こ

う

Meanings

1

noun

calcined gypsum; plaster of Paris

Technical term for gypsum that has been heated to remove water, used in making plaster casts, molds, and construction materials.

焼しょう石せっ膏こうは水みずを加くわえると固かたまる性せい質しつがある。

Calcined gypsum has the property of hardening when water is added.

骨こっ折せつの治ち療りょうには焼しょう石せっ膏こうのギプスが使つかわれることがある。

Plaster of Paris casts are sometimes used in the treatment of fractures.

Kanji

焼bake, burning
石stone
膏fat, grease, lard

Related words

石せっ膏こう
石膏 is raw gypsum (calcium sulfate dihydrate), while 焼石膏 is the calcined form (plaster of Paris) obtained by heating it.

Written forms

焼石膏
- しょうせっこう
  Standard kanji form; the reading しょうせっこう is specifically associated with this spelling.
- やきせっこう
焼やき石せっ膏こう
Alternate kanji form with okurigana; read as やきせっこう.
焼しょうせっこう
Search-only kana-kanji mixed form; not a standard written form.
焼しょうセッコウ
Search-only katakana mixed form; not a standard written form.
焼石しょうせっこう
Search-only kana-kanji mixed form; not a standard written form.

Etymology

Compound of 焼 (shō, 'bake' or 'calcine') and 石膏 (sekkō, 'gypsum'), literally 'calcined gypsum'. The reading しょうせっこう is the on'yomi-based reading for the kanji form 焼石膏, while やきせっこう uses the kun'yomi of 焼.

やきせっこう