- 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.