- with all water removed, especially water of crystallization.
Origin of anhydrous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for anhydrous
By careful 188 heating it may be made to yield the anhydrous salt.
When perfectly pure and anhydrous, it forms a white and highly crystalline mass, rapidly decomposed by air and moisture.
Nitric acid oxidises it, evolving at the same time nitric oxide; whilst sulphuric acid converts it into anhydrous sulphate.
A salt hydrate on being heated dissociates into a lower hydrate (or anhydrous salt) and water vapour.
This temperature, therefore, is the transition temperature for decahydrate and anhydrous salt.
- containing no water, esp no water of crystallization
C19: from Greek anudros; see an-, hydro-
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
Word Origin and History for anhydrous
Online Etymology Dictionary, © 2010 Douglas Harper
- Without water, especially water of crystallization.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- Not containing water, especially water of crystallization.
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