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

Kevin Kelly pitched a perfect eighth and Tyler Wells finished for his sixth save after major league saves leader Bryan Baker exited with what the right-hander believed was dehydration after issuing two walks to start the ninth. — ABC News, 4 Sep. 2026

Mythical causes of altitude sickness include alcohol consumption, dehydration, and poor fitness. — Katie Hill, Outdoor Life, 3 Sep. 2026

Symptoms include fever, depression, anorexia, vomiting, diarrhea and dehydration. — Amaia Gavica, Miami Herald, 3 Sep. 2026

Keeping the plastic on helps prevent dehydration and extends their freshness by up to a week. — Kait Hanson, Southern Living, 2 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