Quantcast
Merriam-Webster Logo
  • Dictionary
  • Thesaurus
  • Scrabble
  • Spanish Central
  • Learner's Dictionary
1

hydrate

play
noun hy·drate \ˈhī-ˌdrāt\

Simple Definition of hydrate

  • : a substance that is formed when water combines with another substance

Source: Merriam-Webster's Learner's Dictionary

Full Definition of hydrate

  1. :  a compound formed by the union of water with some other substance

1802

First Known Use of hydrate

1802


2

hydrate

verb hy·drate

Simple Definition of hydrate

  • : to add water or moisture to (something) : to supply (something) with water

Source: Merriam-Webster's Learner's Dictionary

Full Definition of hydrate

hydrated

hydrating

  1. transitive verb
  2. 1 :  to cause to take up or combine with water or the elements of water

  3. 2 :  to supply with ample fluid or moisture <hydrates and softens the skin>

  4. intransitive verb
  5. :  to become a hydrate

hydration

play \hī-ˈdrā-shən\ noun

hydrator

play \ˈhī-ˌdrā-tər\ noun

Examples of hydrate in a sentence

  1. lotions and creams that hydrate the skin

  2. Drink fluids to hydrate the body.



1846

First Known Use of hydrate

1846


Medical Dictionary

1

hydrate

play
noun hy·drate \ˈhī-ˌdrāt\

Medical Definition of hydrate

  1. :  a compound (as Glauber's salt) formed by the union of water with some other substance




2

hydrate

verb hy·drate

Medical Definition of hydrate

hydrated

;

hydrating

  1. transitive verb

  2. :  to cause to take up or combine with water or the elements of water

  3. intransitive verb

  4. :  to become a hydrate





Seen and Heard

What made you want to look up hydrate? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

looking or feeling very sad

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

dog-eating-apple

Which is a synonym of asperse?

beat defame divulge placate
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ