[ an-hahy-drahyt ]
/ ænˈhaɪ draɪt /


a mineral, anhydrous calcium sulfate, CaSO4, usually occurring in whitish or slightly colored masses.


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Origin of anhydrite

First recorded in 1825–35; anhydr- + -ite1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for anhydrite

British Dictionary definitions for anhydrite

/ (ænˈhaɪdraɪt) /


a colourless or greyish-white mineral, found in sedimentary rocks. It is used in the manufacture of cement, fertilizers, and chemicals. Composition: anhydrous calcium sulphate. Formula: CaSO 4 . Crystal structure: orthorhombic

Word Origin for anhydrite

C19: from anhydr (ous) + -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