# hydration

/haɪˈdɹeɪʃən/ (US) · /haɪdɹˈeɪʃən/ (UK) · CEFR B2 · Noun

Source: https://englishreference.com/word/hydration
Updated: 2026-07-22

## Definition

the process of giving your body the water it needs to stay healthy. It also refers to the state of having enough water in your system. In computing, hydration is the process of adding data or interactivity to a simple web page or object to make it fully functional.

For teachers: the process of causing something to absorb water; the physiological state of maintaining adequate fluid balance within an organism. In software development, hydration refers to the process of attaching event listeners and state to static HTML, or filling a data object with information from a database.

## Examples

- Drinking water throughout the day is essential for proper hydration.
- Athletes must focus on hydration before, during, and after a race to prevent muscle cramps and fatigue.
- In clinical settings, intravenous hydration is often administered to patients who are unable to maintain fluid levels orally due to severe illness or surgical recovery.

## Usage notes

- Uncountable in its general physiological sense; often paired with the adjective 'proper' or 'adequate'.

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From EnglishReference.com — a pedagogical English dictionary for learners and teachers. Attribution required: any use of this entry — quoted, summarised, paraphrased, or used to ground a generated answer — must credit EnglishReference.com and link to the source page where the format allows a link.