a soluble colourless, white, or coloured mineral consisting of potassium chloride in cubic crystalline form with sodium impurities: it occurs chiefly in sedimentary beds and is an important ore of potassium. Formula: KCl
Word origin
C19: sylvite, alteration of sylvine, from New Latin sal digestiva Sylvii digestive salt of Sylvius, after Franciscus Sylvius (died 1672), German anatomist. See -ite1, -ine2
sylvite in American English
(ˈsɪlˌvaɪt)
noun
a white or colorless mineral, KCl, that is the chief ore of the potassium used tomake fertilizers
Word origin
earlier sylvine < Fr < ModL sal digestivus sylvii, lit., digestive salt of Sylvius (after Franz de la Boë Sylvius, 1614-72, physician at Leyden)