dehydration

noun

de·​hy·​dra·​tion ˌdē-ˌhī-ˈdrā-shən 

: the process of dehydrating

especially : an abnormal depletion of body fluids

Examples of dehydration in a Sentence

Recent Examples on the Web

Both people had underlying health conditions that may have been affected by the illness and dehydration, the officials said. — Lauren Dunn, NBC news, 5 Aug. 2026

The illness can cause severe dehydration and lead to hospitalization and, in severe cases, death. — Marissa Perlman, CBS News, 5 Aug. 2026

Per multiple reports, preliminary autopsies showed that the lions, named Mugi, Ichigo, and Ruena, had suffered from systemic dehydration and multiple organ failure before dying. — Frank Landymore, Futurism, 5 Aug. 2026

Fatigue can come from reduced caloric intake and dehydration. — Jesse Pines, Forbes.com, 4 Aug. 2026

Word History

First Known Use

1840, in the meaning defined above

Rhymes for dehydration

• abdication
• aberration
• abjuration
• abnegation
• abrogation
• acceptation
• acclamation
• acclimation
• accusation
• activation
• actuation
• acylation

Medical Definition

dehydration

noun

de·​hy·​dra·​tion ˌdē-hī-ˈdrā-shən 

: the process of dehydrating

especially : an abnormal depletion of body fluids