- potassium nitrate
- sodium nitrate
Origin of niterMiddle English nitre from Middle French from Classical Latin nitrum from Classical Greek nitron, native soda, natron from Classical Hebrew (language) or Egypt: Classical Hebrew (language) netr from Egyptian n?r
Also Chiefly Brit.ni′tre
See potassium nitrate.
Origin of niterMiddle English nitre sodium carbonate, natron from Old French from Latin nitrum from Greek nitron from Egyptian n&tlowmac;r
- (US, chemistry) A mineral form of potassium nitrate used in making gunpowder.