Definition of dehydrogenate in English:


Pronunciation /dēˌhīˈdräjənāt/ /diˌhaɪˈdrɑdʒəneɪt/

transitive verb

[with object]Chemistry
  • Remove a hydrogen atom or atoms from (a compound)

    as adjective dehydrogenated ‘a dehydrogenated analogue of cortisone’
    • ‘Alcohol dehydrogenase is an enzyme that takes a hydrogen atom from (dehydrogenates) an alcohol molecule.’
    • ‘Addition of ethylene, through a Friedel-Crafts alkylation, to benzene affords ethylbenzene, which can be dehydrogenated to give styrene.’
    • ‘Carbon dioxide is formed when formic acid is dehydrogenated.’
    • ‘Scientists found more dehydrogenates in Chinese livers than westerners through studies of intoxicated people from various countries.’
    • ‘Because lignins are complex polymers, and no standard composition can be defined, calculations were based on end products being the dehydrogenated residues of the three main monolignols.’


Mid 19th century from de- (expressing removal) + hydrogen+ -ate.