[kahy-nahyt, key-]


a mineral, hydrous sulfate of magnesium and potassium chloride, occurring in granular crystalline masses, a source of potassium salts.

Origin of kainite

From the German word Kainit, dating back to 1865–70. See caino-, -ite1
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British Dictionary definitions for kainite



a white mineral consisting of potassium chloride and magnesium sulphate: a fertilizer and source of potassium salts. Formula: KCl.MgSO 4 .3H 2 O

Word Origin for kainite

C19: from German Kainit, from Greek kainos new + -ite 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012