dehydration
dehydration — noun
1. a harmful physical state in which the body contains less water than it needs to
a harmful physical state in which the body contains less water than it needs to work properly, often caused by illness, sweating, or not drinking enough fluids
The nurse said the baby was suffering from mild dehydration after the fever.
often modified by 'mild / severe / chronic'
Noor's doctor warned her that dehydration could make her feel dizzy and confused.
To prevent dehydration in hot weather, the coach told the players to keep drinking water.
Kofi was hospitalised with severe dehydration after working in the sun all day.
Dark urine is an early warning sign of dehydration that people should watch for.
- fluid loss
a more general term that can refer to losing water from any fluid system, not just the body
- desiccation
more technical and usually describes extreme drying of materials or tissue, rarely used in everyday health contexts
- water depletion
sounds more scientific; often used in sports medicine or nutrition writing
- hydration
the healthy state of having enough water in the body
文法句型
noun used without an article in general statements
often modified by adjectives: mild / severe / chronic dehydration
用法筆記
Commonly paired with adjectives that indicate severity: 'mild', 'moderate', or 'severe'. In medical writing, 'dehydration' is an uncountable noun and rarely takes an article.
常見錯誤
2. a method or process of taking water out of a substance such as food, so that it
a method or process of taking water out of a substance such as food, so that it lasts longer without spoiling or changes into a different form
The factory uses a machine that dries fruit through dehydration, turning it into a light powder.
pattern: through dehydration (method / process)
In cooking class, Sahil learned about food dehydration and started making dried apples at home.
Freeze-drying is a special type of dehydration that keeps the original shape of vegetables like carrots.
The dehydration of milk into powder makes it easy to transport to areas without refrigeration.
Isabela dried herbs from her garden using a simple dehydration method so they lasted all winter.
- drying
simpler, everyday word; 'dehydration' is more formal and technical
- desiccation
scientific term for thorough drying, often used in chemistry and biology
- water extraction
describes the action rather than the purpose (preservation)
- rehydration
the process of adding water back to dried material
文法句型
noun + of + something: dehydration of [food / material]
用法筆記
Frequently followed by 'of' to specify the material being dried ('dehydration of fruit'). In food science contexts, it contrasts with 'freeze-drying' and 'air-drying' as specific techniques.