Niter meaning

nītər
noun
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A naturally occurring mineral form of potassium nitrate. It is used to make gunpowder.
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(US, chemistry) A mineral form of potassium nitrate used in making gunpowder.
noun
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Origin of niter

  • Middle English nitre sodium carbonate, natron from Old French from Latin nitrum from Greek nitron from Egyptian nṯr

    From American Heritage Dictionary of the English Language, 5th Edition