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

Or Denmark, where rotavirus vaccination is not routine, and about 1,200 children are hospitalized with rotavirus dehydration every year. — Andrew D. Racine, STAT, 14 Aug. 2026

The hiker, who was suffering from severe dehydration and heat exhaustion, was far up the mountain, a social media post from the Pulaski County Government says. — Arkansas Online, 12 Aug. 2026

They were released after they were treated at medical facilities for scrapes, cuts, dehydration and exhaustion over the weekend, State Police Lt. — Dennis Romero, NBC news, 12 Aug. 2026

Mesa County Search & Rescue/Facebook Higgins, 52, died of heat exposure and dehydration on June 11, 2022. — Logan Smith, CBS News, 9 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