Definition of hydrate in English:


Line breaks: hy|drate


Pronunciation: /ˈhʌɪdreɪt
A compound, typically a crystalline one, in which water molecules are chemically bound to another compound or an element.
More example sentences
  • Methane hydrate is an ice-like compound in which methane molecules are enclosed in cavities formed by water molecules.
  • Methane hydrates belong to a group of compounds known as gas hydrates.
  • Gas hydrate is a crystalline substance composed of gas and water.


Pronunciation: /hʌɪˈdreɪt
[with object] Back to top  
1Cause to absorb water: a powerful moisturizer that hydrates the skin for up to twelve hours
More example sentences
  • All that water you downed hydrates your skin, making your cheeks rosy and eyes bright - bonus!
  • The chicken feet are first blanched with boiling water to hydrate the skin.
  • Facial moisturizers help hydrate the skin on your face.
1.1 Chemistry Combine chemically with water molecules: (as adjective hydrated) hydrated silicate crystals
More example sentences
  • All ions in solution are hydrated, surrounded by water molecules that bond to it through ionic attractions.
  • Water bridges represent the most economical way to hydrate the surface of molecules, with an associated entropic cost.
  • Caesium is a weakly hydrated alkaline metal with chemical similarities to potassium.


early 19th century: coined in French from Greek hudōr 'water'.



More example sentences
  • Water retained by the clays increased with both hydratable surface area and layer charge of the clays.
  • Moisture retention coupled with the presence of hydratable oxides could result in volumetric instability.
  • The solution absorbed by the hydratable layer cannot be discharged by mechanical means.


Pronunciation: /-ˈdreɪʃ(ə)n/
More example sentences
  • Decisions regarding nutrition and hydration are common in the health-care context.
  • Will campers have nerve chips implanted that monitor their hydration and sunscreen levels?
  • Indeed, with appropriate hydration, cholera does not have a very high mortality.


More example sentences
  • To help your eyelashes stay strong, apply mascaras that condition and strengthen the lash hair with special hydrators like panthenol and keratin.
  • Bananas not only make great skin hydrators, they also can improve the health and natural elasticity of your hair.
  • Always overloading, he had brought a case of extra ammo for every gun and bow, rations to last three days, the hydrator, a backup tent, and his signaling equipment for Keahi.

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Word of the day bimble
Pronunciation: ˈbɪmb(ə)l
walk or travel at a leisurely pace