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hydr-

 - 9 dictionary results

hydr-

2
var. of hydro- 2 before a vowel: hydride.

hydro-

1
a combining form meaning “water,” used in the formation of compound words: hydroplane; hydrogen.
Also, especially before a vowel, hydr- 1 .


Origin:
< Gk, comb. form of hýdōr water

hydro-

2
a combining form representing hydrogen in compound words, denoting esp. a combination of hydrogen with some negative element or radical: hydrobromic.
Also, especially before a vowel, hydr- 2 .
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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hydr-  
pref.  Variant of hydro-.
hydro- or hydr-  
pref.  
    1. Water: hydroelectric.

    2. Liquid: hydrodynamics.

  1. Hydrogen: hydrochloride.


[Greek hudro-, hudr-, from hudōr; 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

hydr- pref.
Variant of hydro-.

hydro- or hydr-
pref.

  1. Water; liquid: hydrocephalus.

  2. Hydrogen: hydrochloride.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
hydro-  
A prefix that means: "water" (as in hydroelectric) or "hydrogen," (as in hydrochloride).
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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