Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “hydrate”

hydrate

verb [I or T] /haɪˈdreɪt/ us  /ˈhaɪ.dreɪt/
to make your body absorb water or other liquid: oils that help hydrate your skin Make sure you hydrate (= drink something) before you exercise.

hydrate

noun [C] uk   /ˈhaɪ.dreɪt/ specialized us  
a chemical that contains waterTypes of chemicalSpecific chemicals, chemical compounds and gasesSubstances and structures in the body
(Definition of hydrate from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of hydrate?
Add Cambridge dictionaries to your browser to your website

Definitions of “hydrate” in other dictionaries

Word of the Day

blueprint

a photographic copy of an early plan for a building or machine

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More