dehydration

Dehydration is what happens when something has water removed from it. Dehydration makes people extremely thirsty, and it can make plants grow droopy and brown.

During dehydration, moisture is lost without being replaced. In humans, dehydration can happen during strenuous exercise or in extreme heat — or simply when someone doesn't drink enough water for a certain length of time. A grape becomes a raisin through dehydration, shriveling and drying as moisture is removed. Dehydration and dehydrate, first used only by scientists, have a Greek root, hydro, "water."

Definitions of dehydration
  1. noun
    the process of extracting moisture
    synonyms: desiccation, drying up, evaporation
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    types:
    freeze-drying, lyophilisation, lyophilization
    a method of drying food or blood plasma or pharmaceuticals or tissue without destroying their physical structure; material is frozen and then warmed in a vacuum so that the ice sublimes
    inspissation
    the process of thickening by dehydration
    type of:
    extraction
    the process of obtaining something from a mixture or compound by chemical or physical or mechanical means
  2. noun
    dryness resulting from the removal of water
    synonyms: desiccation
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    type of:
    dryness, waterlessness, xerotes
    the condition of not containing or being covered by a liquid (especially water)
  3. noun
    depletion of bodily fluids
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    type of:
    thirst, thirstiness
    a physiological need to drink
Word Family
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