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hydrated

[hahy-drey-tid] /ˈhaɪ dreɪ tɪd/
adjective
1.
chemically combined with water in its molecular form.
2.
(of paper pulp) beaten until gelatinous for making into water-resistant paper.
Origin of hydrated
1800-1810
1800-10; hydrate + -ed2
Related forms
nonhydrated, adjective
unhydrated, adjective

hydrate

[hahy-dreyt] /ˈhaɪ dreɪt/
noun
1.
any of a class of compounds containing chemically combined water. In the case of some hydrates, as washing soda, Na 2 CO 3 ⋅10H 2 O, the water is loosely held and is easily lost on heating; in others, as sulfuric acid, SO 3 ⋅H 2 O, or H 2 SO 4 , it is strongly held as water of constitution.
verb (used with object), verb (used without object), hydrated, hydrating.
2.
to combine chemically with water.
Origin
1795-1805; hydr-1 + -ate2
Related forms
hydration, noun
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for hydrated

hydrated

/ˈhaɪdreɪtɪd/
adjective
1.
(of a compound) chemically bonded to water molecules

hydrate

/ˈhaɪdreɪt/
noun
1.
a chemical compound containing water that is chemically combined with a substance and can usually be expelled without changing the constitution of the substance
2.
a chemical compound that can dissociate reversibly into water and another compound. For example sulphuric acid (H2SO4) dissociates into sulphur trioxide (SO3) and water (H2O)
3.
(not in technical usage) a chemical compound, such as a carbohydrate, that contains hydrogen and oxygen atoms in the ratio two to one
verb
4.
to undergo or cause to undergo treatment or impregnation with water
Derived Forms
hydration, noun
hydrator, noun
Word Origin
C19: from hydro- + -ate1
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
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Word Origin and History for hydrated

hydrate

n.

1802, "compound of water and another chemical," from French hydrate, coined c.1800 by French chemist Joseph-Louis Proust (1754-1826) from Greek hydr-, stem of hydor "water" (see water (n.1)).

v.

1850, "to form a hydrate;" 1947 as "to restore moisture;" from Greek hydr-, stem of hydor "water" (see water (n.1)) + -ate (2). Related: Hydrated; hydrating.

Online Etymology Dictionary, © 2010 Douglas Harper
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hydrated in Medicine

hydrate hy·drate (hī'drāt')
n.
A solid compound containing water molecules combined in a definite ratio as an integral part of a crystal. v. hy·drat·ed, hy·drat·ing, hy·drates

  1. To rehydrate.

  2. To supply water to a person or thing in order to restore or maintain fluid balance.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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hydrated in Science
hydrate
  (hī'drāt')   
Noun  A compound produced by combining a substance chemically with water. Many minerals and crystalline substances are hydrates.

Verb  
  1. To combine a compound with water, especially to form a hydrate.

  2. To supply water to a person in order to restore or maintain a balance of fluids.


The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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