Dictionary.com
Thesaurus.com

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.

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

They found that the same aldehyde dehydrogenase gene in the lovebirds to express at high level in yellow psittacofulvin-containing feathers, but not in red feathers.

From Science Daily • Nov. 15, 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 transfers enzyme- bound acetyl group to CoA forming an acetyl CoA molecule.

From Textbooks • Jun. 9, 2022

Dihydrolipoyl dehydrogenase transfers enzyme- bound acetyl groups to CoA forming an acetyl- CoA molecule.

From Textbooks • Jun. 9, 2022