Longman Dictionary of Contemporary English homepage

dehydrate

 verb
     
Related topics: Illness and Disability
de‧hy‧drate
1 [transitive] to remove the liquid from a substance such as food or a chemical [↪ rehydrate, hydrate]:
The substance is dehydrated and stored as powder.
2 [intransitive and transitive] to lose too much water from your body, or to make this happen:
Alcohol dehydrates the body.
—dehydrated adjective
—dehydration noun [uncountable]
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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