saltpetre

noun

1. 硝石；钾硝；硝酸钾
   a white powder used for preserving food and making matches and gunpowder

1. "The iodide is added to table salt to protect against iodine deficiency. The nitrate is also called saltpetre, and the carbonate is called potash." Experimental study on the effects of KI and KIO_3 on thyroid hormone
   在食盐中加入碘化钾以防碘缺乏。硝酸盐亦称硝石，碳酸盐亦称钾碱。碘化钾、碘酸钾对缺碘大鼠甲状腺激素作用的实验研究
2. The earliest written formula for a form of gunpowder, a mixture of charcoal, saltpetre and sulphur, appeared in a Chinese book published in AD 1044.
   在一本出版于1044年的中文书籍中提到了一种用木炭、硝石和硫磺混合制成火药的方法。
3. Go and take a look at any Chinese pharmacy, and you will see cabinets with numerous drawers, each bearing the name of a drug& toncal, foxglove, rhubarb, saltpetre, indeed, everything that should be there.
   你们去看一看中药铺，那里的药柜子上有许多抽屉格子，每个格子上面贴着药名，当归、地、黄、硝，应有尽有。
4. Salvaging dig-saltpetre ship in lake with altitude of 1200 meters
   在海拔1200米湖中打捞挖硝船
5. The history of saltpetre and mirabilite distinction in ancient China
   中国古代试辨硝石与芒硝的历史

noun

1. (KNO3) used especially as a fertilizer and explosive

   Synonym:    potassium nitratesaltpeterniternitre