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

My complexion felt more hydrated and looked slightly plumper, particularly around areas where dehydration lines usually appear – which is mostly my forehead. — Lucy Partington, Glamour, 7 Oct. 2026

Dove warns that dehydration can concentrate sweat and intensify its smell, especially after hot flashes. — Samantha Agate, Sacbee.com, 5 Oct. 2026

For those who forget, the 31-time race winner retired at the end of that 2018 season due to health reasons, pointing towards dehydration as a big factor. — Zach Dean Outkick, FOXNews.com, 5 Oct. 2026

Heatwaves drive heatstroke, dehydration, and other health conditions; rising air pollution from haze causes respiratory conditions; floods and natural disasters cause injury while disrupting the day-to-day operations of hospitals and clinics. — Mitch New, Fortune, 30 Sep. 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