- 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.
- to lose water or moisture: Milk dehydrates easily.
Origin of dehydrate
2. See evaporate.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for dehydrate
It is employed to dehydrate certain oils with which the pork-packer adulterates lard.Highways and Byways in Surrey
Drop absolute alcohol on to the section from a drop bottle, to dehydrate it.
Decolourise and dehydrate rapidly with absolute alcohol until there remains only a very faint bluish tint.
Flood with several changes of absolute alcohol to dehydrate the section.
- 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
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
Word Origin and History for dehydrate
Online Etymology Dictionary, © 2010 Douglas Harper
- To remove water from; make anhydrous.
- To preserve by removing water from something, such as vegetables.
- 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.