dehydration - definition and synonyms

noun [uncountable] 

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/ˌdiːhaɪˈdreɪʃ(ə)n/
  1. 2
    chemistry the process of removing water from food as a way of preserving it
     Synonyms and related words
  2. 3
    chemistry the process by which a chemical compound loses hydrogen and oxygen atoms in the ratio 2:1