hydr-

Dictionary.com Unabridged

hydr-

2
variant of hydro-2. before a vowel: hydride.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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Collins
World English Dictionary
hydr-
 
combining form
a variant of hydro-

hydro- or (sometimes before a vowel) hydr-
 
combining form
1.  indicating or denoting water, liquid, or fluid: hydrolysis; hydrodynamics
2.  indicating the presence of hydrogen in a chemical compound: hydrochloric acid
3.  indicating a hydroid: hydrozoan
 
[from Greek hudōr water]
 
hydr- or (sometimes before a vowel) hydr-
 
combining form
 
[from Greek hudōr water]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

hydr- pref.
Variant of hydro-.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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