oxidase
noun
ox·i·dase
ˈäk-sə-ˌdās 
-ˌdāz
: any of various enzymes that catalyze oxidations
especially
: one able to react directly with molecular oxygen
Examples of oxidase in a Sentence
Recent Examples on the Web
Formulated without alcohol or hydrogen peroxide, the TheraBreath Whitening Fresh Breath Oral Rinse uses glucose oxidase and enzymes called papain to help break up stains and kill bad-breath-causing bacteria—all without aggravating sensitive teeth and gums.
—
Sophia Panych, Allure, 16 Sep. 2025
An enzyme called glucose oxidase, which bees add to nectar, turns glucose into gluconic acid and hydrogen peroxide when the honey is diluted (for example, by wound moisture or saliva).
—New Atlas, 29 June 2025
Back in the 1990s, the biologist Navdeep Chandel (opens a new tab) was a graduate student working on a mitochondrial enzyme called cytochrome c oxidase.
—Viviane Callier, Quanta Magazine, 21 Mar. 2025
MAOIs Monoamine oxidase inhibitors are an older class of drugs used to treat depression.
—Karen Berger, Pharmd, Verywell Health, 20 Feb. 2025
See All Example Sentences for oxidase
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Sophia Panych, Allure, 16 Sep. 2025
An enzyme called glucose oxidase, which bees add to nectar, turns glucose into gluconic acid and hydrogen peroxide when the honey is diluted (for example, by wound moisture or saliva).
—New Atlas, 29 June 2025
Back in the 1990s, the biologist Navdeep Chandel (opens a new tab) was a graduate student working on a mitochondrial enzyme called cytochrome c oxidase.
—Viviane Callier, Quanta Magazine, 21 Mar. 2025
MAOIs Monoamine oxidase inhibitors are an older class of drugs used to treat depression.
—Karen Berger, Pharmd, Verywell Health, 20 Feb. 2025
See All Example Sentences for oxidase
Cite this Entry
“Oxidase.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/oxidase. Accessed 4 Nov. 2025.
Copy CitationMedical Definition
oxidase
noun
ox·i·dase
ˈäk-sə-ˌdās, -ˌdāz
: any of various enzymes that catalyze oxidations
especially
: one able to react directly with molecular oxygen
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