- salton sea,
- salton sink,
- saltwater taffy
Origin of saltpeter
Examples from the Web for saltpetre
The saltpetre works buy also draught-mules for their waggons.The Argentine Republic|Pierre Denis
Clean it well, take out the brains, rub it with a handful of salt, and two ounces of saltpetre.
A drachm each of saltpetre, ginger, and Barbadoes aloes will form a mild aperient, when made into a mass with a little soft soap.Riding for Ladies|Mrs. Power O'Donoghue
Saltpetre is dearer in one place than another, being worth one and a half.
Nitric acid is procurable in a more concentrated state, and with much less loss, by mixing very dry clay with saltpetre.Elements of Chemistry,|Antoine Lavoisier
Word Origin for saltpetre
"potassium nitrate," c.1500, earlier salpetre (early 14c.), from Old French salpetre, from Medieval Latin sal petrae "salt of rock," from Latin sal "salt" (see salt (n.)) + petra "rock, stone" (see petrous). So called because it looks like salt encrusted on rock.