from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Water in chemical combination with a crystal, necessary for the maintenance of crystalline properties but capable of being removed by sufficient heat.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The water present in the crystals of the salts of certain metals; it is weakly bound by electrostatic forces and may normally be removed by heating.
from the GNU version of the Collaborative International Dictionary of English
- n. the water combined with many salts in their crystalline form. This water is loosely, but, nevertheless, chemically, combined, for it is held in fixed and definite amount for each substance containing it. Thus, while pure copper sulphate, CuSO4, is a white amorphous substance, blue vitriol, the crystallized form, CuSO4.5H2O, contains five molecules of water of crystallization.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the water present in hydrated compounds
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