Definitions

from The Century Dictionary.

  • noun See saltpeter.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun Potassium nitrate.
  • noun Sodium nitrate.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun (KNO3) used especially as a fertilizer and explosive

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

From the Old French salpetre, from Late Latin sāl petrae ("stone salt; possibly "salt of Petra"").

Examples

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