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

Origin of anhydrite

First recorded in 1825–35; anhydr- + -ite1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for anhydrite

Historical Examples of anhydrite

British Dictionary definitions for anhydrite



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
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