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oxidase

American

[ok-si-days, -dayz] / ˈɒk sɪˌdeɪs, -ˌdeɪz /

noun

Biochemistry.

any of a class of oxidoreductases that catalyze the oxidation of a substrate by molecular oxygen with the formation, in most cases, of hydrogen peroxide.

oxidase British

/ ˈɒksɪˌdeɪs, -ˌdeɪz /

noun

any of a group of enzymes that bring about biological oxidation

"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

Other Word Forms

oxidasic

adjective

Etymology

Origin of oxidase

First recorded in 1895–1900; oxide + -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:

oxidase

Ado is originally an oxidase enzyme that adds an oxygen atom to the substrate -- isoeugenol.

From Science Daily ● May 16, 2024

As shown in Figure 7.11, cyanide inhibits the electron transport chain by competing with O2 molecules for the cytochrome c oxidase heme group.

From Textbooks ● Jun. 9, 2022

Just like apples that turn brown after slicing, eggplants also contain the enzyme polyphenol oxidase.

From Salon ● Jul. 28, 2021

This gene encodes the enzyme GA20 oxidase 2, which catalyses the production of highly active forms of gibberellin3,4.

From Nature ● Jul. 14, 2020

If the chestnut could produce its own oxalate oxidase, a specialized protein that breaks down oxalic acid, it might be able to defend itself, Powell realized.

From New York Times ● Apr. 30, 2020

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023