noun
hydration
heye-DRAY-shuhn
noun
1
The process of giving the body (or another substance) an adequate supply of water.
"Proper hydration is essential during long-distance running."
2
A chemical reaction in which a substance combines with water, sometimes releasing heat, as happens when cement sets.
"The hydration of cement is what makes concrete harden."
How to Use Hydration
Learner’s notesIn plain EnglishThe state or process of having enough water, whether in your body or in a chemical reaction.
Common pairings
hydration levels
skin hydration
proper hydration
Word Forms
hydrations plural
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Proper _____ is essential during long-distance running.
Etymology
Formed from hydrate plus the noun-forming suffix "-ion."