oxidoreductase

noun

ox·​i·​do·​re·​duc·​tase ˈäk-sə-dō-ri-ˈdək-ˌtās How to pronounce oxidoreductase (audio)
-ˌtāz
: an enzyme that catalyzes an oxidation-reduction reaction

Examples of oxidoreductase in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
One heat-resistant enzyme called pyruvate oxidoreductase, for example, combines several functions that our own colder chemistry delegates to separate molecules. — Will Hively, Discover Magazine, 11 Nov. 2019 These include oxidoreductases, transferases, hydrolases, lyases, isomerases and ligases, a categorization Farina says is foundational to understanding enzyme functionality. — Daryl Austin, USA Today, 27 June 2025

Word History

Etymology

oxidation + -o- + reduction + -ase

First Known Use

1922, in the meaning defined above

Time Traveler
The first known use of oxidoreductase was in 1922

Rhymes for oxidoreductase

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Browse Nearby Words

oxido-
oxidoreductase
oxidulated
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Cite this Entry

“Oxidoreductase.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/oxidoreductase. Accessed 8 Jul. 2026.

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Medical Definition

oxidoreductase

noun
ox·​i·​do·​re·​duc·​tase ˈäk-səd-ō-ri-ˈdək-ˌtās, -ˌtāz How to pronounce oxidoreductase (audio)
: an enzyme that catalyzes an oxidation-reduction reaction

More from Merriam-Webster on oxidoreductase

Britannica.com: Encyclopedia article about oxidoreductase

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