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anhydrous

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an⋅hy⋅drous

[an-hahy-druhs]
–adjective Chemistry.
with all water removed, esp. water of crystallization.

Origin:
1810–20; < Gk ánȳdros waterless (with etymological h restored). See an- 1 , hydro- 1 , -ous
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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an·hy·drous   (ān-hī'drəs)   
adj.  Without water, especially water of crystallization.

[From Greek anudros : an-, without; see a-1 + hudōr, water; see wed-1 in Indo-European roots.]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: an·hy·drous
Pronunciation: (')an-'hI-dr&s
Function: adjective
: free from water and especially water that is chemicallycombined in a crystalline substance <anhydrous ammonia>
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

anhydrous an·hy·drous (ān-hī'drəs)
adj.
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.
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