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[sil-vahyt] /ˈsɪl vaɪt/
a common mineral, potassium chloride, KCl, colorless to milky-white or red, occurring in crystals, usually cubes, and masses with cubic cleavage, bitter in taste: the most important source of potassium.
Also, sylvin, sylvine
[sil-vin] /ˈsɪl vɪn/ (Show IPA)
Origin of sylvite
1965-70; < Latin (sal digestīvus) Sylvi(ī) digestive salt of Sylvius (see Sylvian fissure) + -ite1; replacing sylvine < French Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for sylvin


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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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