Go to 'thermo-' entry Go to 'dino-' entry Go to 'chondro-' entry Go to 'aero-' entry Go to '-logy' entry Go to 'thaumato-' entry Go to 'nano-' entry Go to '-sophy' entry Go to 'bucco-' entry Go to '-ism' entry Go to '-lysis' entry Go to 'galacto-' entry Go to '-anthropy' entry Go to 'pneumo-' entry Go to '-ploitation' entry Go to '-lithic' entry Go to '-sepalous' entry Go to 'onco-' entry Go to '-parous' entry Go to 'dermato-' entry Go to 'multi-' entry Go to 'dodeca-' entry Go to '-zoon' entry Go to 'vermi-' entry Go to 'crystallo-' entry Go to 'biblio-' entry Go to 'eco-' entry Go to 'juxta-' entry Go to 'facio-' entry
Affixes: the building blocks of English
Affixes: the building blocks of English

dehydro-

Loss of hydrogen.

[de- plus hydro-2.]

In chemical naming this indicates the loss of one or more hydrogen atoms, a process called dehydrogenation; examples include dehydrocholesterol, a derivative of cholesterol present in the skin that is converted to vitamin D by sunlight, and dehydroacetic acid, a cyclic compound derived from acetic acid that is sometimes used as a fungicide. A dehydrogenase is an enzyme that catalyses the removal of hydrogen atoms from a particular molecule, examples being glucose dehydrogenase, choline dehydrogenase, and alcohol dehydrogenase. To dehydrate, to lose water from the body, comes directly from Greek hudros, hudr-, water.

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