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Potassium nitrate
noun
Definitions
Noun
- 1 KNO₃, a naturally occurring salt, notably used as an ingredient of gunpowder; also used a food preservative and as an ingredient in toothpaste for sensitive gums; historically used in the production of nitric acid (HNO₃). uncountable
- 2 (KNO3) used especially as a fertilizer and explosive wordnet
See also for "potassium nitrate"
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