To hydrate is to add or absorb water. It's hot outside — don't forget to hydrate by drinking plenty of water!

If you want to sound fancy, you can use the word hydrate every time you get a drink of water. Along with most organisms, we need to hydrate, or ingest water, to stay alive. This verb is also commonly used to mean "moisturize," as in "this magic cream will hydrate your skin like you won't believe!" As a noun, hydrate refers to a chemical compound that includes water molecules. A French chemist coined the noun in 1800 from the Greek hydor, "water."

Definitions of hydrate
  1. noun
    any compound that contains water of crystallization
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    a hydrate that contains one molecule of water per molecule of the compound
    type of:
    chemical compound, compound
    (chemistry) a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight
  2. verb
    supply water or liquid to in order to maintain a healthy balance
    “the bicyclists must be hydrated frequently”
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    type of:
    furnish, provide, render, supply
    give something useful or necessary to
  3. verb
    cause to be hydrated; add water or moisture to
    hydrate your skin”
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    dehydrate, desiccate, dry up, exsiccate
    lose water or moisture
    slack, slake
    cause to heat and crumble by treatment with water
    alter by exposure to air with conversion at least in part to a carbonate
    type of:
    humidify, moisturise, moisturize
    make (more) humid
  4. verb
    become hydrated and combine with water
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    type of:
    undergo a change; become different in essence; losing one's or its original nature
Word Family

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