dehydrate

UK: /ˌdiːhaɪˈdreɪt/, /diːˈhaɪdreɪt/

US: /diˈhaɪdreɪt/

US: (dē hī′drāt)

Inflections of 'dehydrate' (v): (⇒ conjugate)

dehydrates

v 3rd person singular

dehydrating

v pres p

dehydrated

v past

dehydrated

v past p

WordReference Random House Learner's Dictionary of American English © 2025

de•hy•drate /diˈhaɪdreɪt/   v. [~ + object] , -drat•ed, -drat•ing. 

1. Nutrition, Food to remove water from, esp. to free (fruit, vegetables, etc.) from moisture in order to preserve; dry:
   The vegetables were dehydrated and sealed in packages.

de•hy•dra•tion /ˌdihaɪˈdreɪʃən/  n. [uncountable]

WordReference Random House Unabridged Dictionary of American English © 2025

de•hy•drate  (dē hī′drāt), v., -drat•ed, -drat•ing. 
v.t. 

1. Chemistry to deprive (a chemical compound) of water or the elements of water.
2. Nutrition, Food to free (fruit, vegetables, etc.) from moisture for preservation;
   dry.
3. Pathology to remove water from (the body or a tissue).
4. to deprive of spirit, force, or meaning;
   render less interesting or effectual.

v.i. 

5. to lose water or moisture:
   Milk dehydrates easily.

• de- + hydrate 1850–55

Synonyms

• 2. . See evaporate. 

Collins Concise English Dictionary © HarperCollins Publishers::

dehydrate / diːˈhaɪdreɪt ˌdiːhaɪˈdreɪt/ verb

1. to lose or cause to lose water; make or become anhydrous
2. 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

ˌdehyˈdration noun

deˈhydrator, deˈhydrater noun