noun
heated stone; hot stone
A stone that has been heated, often used for cooking, warming, or therapeutic purposes. Compare with 温石 (おんじゃく), a stone used specifically for warming the body.
See also: 温石
焼き石を鍋に入れて料理する。
Cook by putting heated stones into the pot.
温泉で焼き石を使ったマッサージを受けた。
I received a massage using hot stones at the hot spring.
温石 specifically refers to a stone used for warming the body, often in traditional medicine or hot spring settings, while 焼き石 is a more general term for any heated stone.
Compound of 焼き (yaki, 'baking, grilling') + 石 (ishi, 'stone'). The exact historical derivation is uncertain, but the word straightforwardly describes a stone that has been heated.