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

Pregnancy already places extraordinary demands on the body, and extreme heat compounds them — piling on dehydration, heat stress, skin infections and breathlessness at precisely the moment a body has the least margin to spare. — Catarina Rolfsdotter-Jansson, Forbes.com, 22 Aug. 2026

Salmonella poisoning can cause diarrhea, fever, severe vomiting, dehydration and stomach cramps. — ABC News, 20 Aug. 2026

Plus, dehydration can also worsen other menopause symptoms, including brain fog, fatigue and achy joints. — Maggie Ryan, Flow Space, 20 Aug. 2026

Joy added that alcohol can worsen dehydration, and excessive caffeine can leave you restless. — Stacey Leasca, Travel + Leisure, 19 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