Look up dehydration in Wiktionary, the free dictionary.
Dehydration is the excessive loss of body water.
Dehydration or water loss may also refer to other cases of water loss/removal (sometimes colloquially):
- Drying, the removal of water through chemical or physical means
- Desiccation, sometimes synonymous with drying, sometimes an extreme form of it
- Food drying, food preservation by dehydration
- Dehydration reaction, a chemical reaction
- Dryness (medical) of skin, etc.