potassium nitrate

noun

Definition of potassium nitrate

: a crystalline salt KNO3 that occurs as a product of nitrification in arable soils, is a strong oxidizer, and is used especially in making gunpowder, as a fertilizer, and in medicine

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First Known Use of potassium nitrate

1866

in the meaning defined above

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Medical Dictionary

potassium nitrate

noun

medical Definition of potassium nitrate

: a crystalline salt KNO3 that is a strong oxidizing agent and is used in medicine chiefly as a diuretic called also niter, saltpeter

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