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dehydrogenase

American  
[dee-hahy-druh-juh-neys, -neyz] / diˈhaɪ drə dʒəˌneɪs, -ˌneɪz /

noun

Biochemistry.
  1. an oxidoreductase enzyme that catalyzes the removal of hydrogen.


dehydrogenase British  
/ diːˈhaɪdrədʒəˌneɪz /

noun

  1. an enzyme, such as any of the respiratory enzymes, that activates oxidation-reduction reactions by transferring hydrogen from substrate to acceptor

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of dehydrogenase

First recorded in 1920–25; dehydrogen(ate) + -ase

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Fomepizole works by blocking enzymes known as alcohol dehydrogenase, stopping the body from converting ethylene glycol and methanol into toxic byproducts.

From Science Daily Jan. 18, 2026

Within the standard therapy group, the researchers discovered that patients who had a high tumor burden or elevated levels of the enzyme lactate dehydrogenase had shorter event-free survival.

From Science Daily Jan. 17, 2024

"We show in this study that CD8+ T cells indeed engage this metabolic pathway, and that an extensively characterized metabolic enzyme known as isocitrate dehydrogenase plays a central role in the process," said Ho.

From Science Daily Sep. 20, 2023

Pyruvate dehydrogenase is also regulated by phosphorylation: A kinase phosphorylates it to form an inactive enzyme, and a phosphatase reactivates it.

From Textbooks Jun. 9, 2022

These enzymes are isocitrate dehydrogenase and α‑ketoglutarate dehydrogenase.

From Textbooks Jun. 9, 2022

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