alcohol dehydrogenase

noun

Medical Definition of alcohol dehydrogenase

: any of various dehydrogenases that catalyze the reversible oxidation of an alcohol to an aldehyde or ketone

Note: In humans, alcohol dehydrogenase is found especially in the liver and mucous-membrane lining of the stomach as a zinc-containing enzyme composed of two identical subunits that catalyzes the oxidation of an alcohol (such as ethanol) to an aldehyde (such as acetaldehyde) in the presence of NAD.

Normally, alcohol is broken down by the enzyme alcohol dehydrogenase (ADH), which in turn produces acetaldehyde, a toxic compound that can cause high blood pressure, skin flushing, and vomiting.— Meredith F. Small, Discover, July 2002 abbreviation ADH

Learn More about alcohol dehydrogenase

Cite this Entry

“Alcohol dehydrogenase.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/alcohol%20dehydrogenase. Accessed 8 Mar. 2021.

Style: MLA
MLA Chicago APA Merriam-Webster

Comments on alcohol dehydrogenase

What made you want to look up alcohol dehydrogenase? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Who Knew?

How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Universal Daily Crossword

A daily challenge for crossword fanatics.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!