Try Our Apps


The Best Internet Slang


[dee-hahy-dreyt] /diˈhaɪ dreɪt/
verb (used with object), dehydrated, dehydrating.
to deprive (a chemical compound) of water or the elements of water.
to free (fruit, vegetables, etc.) from moisture for preservation; dry.
to remove water from (the body or a tissue).
to deprive of spirit, force, or meaning; render less interesting or effectual.
verb (used without object), dehydrated, dehydrating.
to lose water or moisture:
Milk dehydrates easily.
Origin of dehydrate
First recorded in 1850-55; de- + hydrate
Synonym Study
2. See evaporate. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
Examples from the Web for dehydrate
Historical Examples
British Dictionary definitions for dehydrate


/diːˈhaɪdreɪt; ˌdiːhaɪˈdreɪt/
to lose or cause to lose water; make or become anhydrous
to lose or cause to lose hydrogen atoms and oxygen atoms in the proportions in which they occur in water, as in a chemical reaction
to lose or deprive of water, as the body or tissues
Derived Forms
dehydration, noun
dehydrator, noun
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
Cite This Source
Word Origin and History for dehydrate

1854, from de- + hydrate (v.). A chemical term at first, given a broader extension 1880s. Related: Dehydration (1834).

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
dehydrate in Medicine

dehydrate (dē-hī'drāt')
v. de·hy·drat·ed, de·hy·drat·ing, de·hy·drates

  1. To remove water from; make anhydrous.

  2. To preserve by removing water from something, such as vegetables.

  3. To deplete the bodily fluids of an individual.

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

Word of the Day

Difficulty index for dehydrate

Few English speakers likely know this word

Word Value for dehydrate

Scrabble Words With Friends

Nearby words for dehydrate