hydration
hy-DRAY-shun
/haɪˈdreɪ.ʃən/
The process of absorbing and maintaining an adequate supply of water within the body's cells and tissues.
Refers specifically to physiological fluid intake and cellular water balance, not just drinking water casually.
The story behind the word. Derived from ancient Greek 'hydor' (meaning 'water'). It entered 19th-century chemical terminology to describe compounds combining with water molecules, eventually shifting into physiological usage to describe internal fluid replenishment.
Word relationships
- fluid balance: Fluid balance is a broader clinical term encompassing total bodily fluid dynamics, including electrolytes.
- dehydration: Harmful loss or lack of water in body tissues.
Commonly confused with
- dehydration: Hydration is the state or process of absorbing sufficient fluid; dehydration is the dangerous condition of deficit.
Word family
- hydrate (verb): To absorb or supply water to body tissues.
- hydrated (adjective): Containing adequate moisture or water.
Collocations
- proper hydration
- adequate hydration
- hydration status
- maintain hydration
Example sentences
- "Maintaining proper hydration during endurance exercise prevents heat exhaustion and supports cognitive performance." Sports science
- "Adequate hydration supports kidney function and assists in fluid balance regulation." Clinical advice
Memory hook
HYDRation comes from HYDOR, the ancient word for water. Hydor = Water balance
When not to use
Do not use to describe applying external liquids to non-living objects (e.g. soaking wood).
Fun facts
- Mild dehydration (just 1 to 2% loss of body weight in water) can measurably impair concentration and working memory.
Related words
Explore more words
hydrate, Moisturize, homeostasis, absorbent, beverage, absorption
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