♦ Potassæ nitras, a salt formed by the union of nitric acid with potash; the main agent in gunpowder.
·noun ·see <<Niter>>. II. Nitre ·noun Native sodium carbonate; natron. III. Nitre ·noun A white cr...
Webster's Dictionary of the English Language
(Prov. 25:20; R.V. marg., "soda"), properly "natron," a substance so called because, rising from the...
Easton's Bible Dictionary
Mention of this substance is made in (Proverbs 25:20)-"and as vinegar upon nitre"-and in (Jeremiah 2...
William Smith's Bible Dictionary