Definition of kainite
: a natural salt KMg(SO4)Cl·3H2O consisting of a hydrous sulfate and chloride of magnesium and potassium that is used as a fertilizer and as a source of potassium and magnesium compounds
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Origin and Etymology of kainite
German Kainit, from Greek kainos new — more at recent
First Known Use: 1868
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Britannica.com: Encyclopedia article about kainite
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