| a white or transparent mineral, sodium nitrate, NaNO3, used chiefly as a fertilizer and in the manufacture of sulfuric and nitric acids and potassium nitrate. |
| soda niter n. See sodium nitrate. |
| sodium nitrate n. A white crystalline compound, NaNO3, used in solid rocket propellants, in the manufacture of explosives and glass and pottery enamel, and as fertilizer. Also called caliche, Chile saltpeter, saltpeter, soda niter. |
