A harmful condition caused by the excessive loss of water from the body.
The child was taken to hospital suffering from severe dehydration.
Dehydration can make you feel dizzy and confused.
✦ Early 19th century: from de- (expressing removal) + hydrate + -ation.
The action or process of removing water or moisture from something, especially food or chemicals.
Dehydration is a common method to preserve fruits.
The dehydration process turns grapes into raisins.
