catalase

noun
cat·​a·​lase | \ ˈka-tə-ˌlās How to pronounce catalase (audio) , -ˌlāz \

Definition of catalase

: a red crystalline enzyme that consists of a protein complex with hematin groups and catalyzes the decomposition of hydrogen peroxide into water and oxygen

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Other Words from catalase

catalatic \ ˌka-​tə-​ˈla-​tik How to pronounce catalase (audio) \ adjective

Examples of catalase in a Sentence

Recent Examples on the Web In fact, the catalase reaction is dependent on the substrate concentration. Svenja Lohner, Scientific American, 10 Nov. 2016 Blood and most of our cells contain an enzyme called catalase. Dr. Michael Daignault, USA TODAY, 24 Feb. 2022 Certain cells in the small intestine have high amounts of catalase, an enzyme that breaks down hydrogen peroxide to release oxygen. Pratibha Gopalakrishna, STAT, 26 Aug. 2020 Yeast is an organism that contains a special chemical called catalase that can act as a catalyst to help break down hydrogen peroxide. Ben Finio, Scientific American, 1 Aug. 2019 Normally, catalase is one of the most efficient enzymes in the human body, capable of decomposing of millions of hydrogen peroxide molecules every second. David Grossman, Popular Mechanics, 28 May 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'catalase.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of catalase

1901, in the meaning defined above

History and Etymology for catalase

catalysis

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Learn More About catalase

Time Traveler for catalase

Time Traveler

The first known use of catalase was in 1901

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Dictionary Entries Near catalase

Catalanist

catalase

Çatalca

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Statistics for catalase

Last Updated

7 May 2022

Cite this Entry

“Catalase.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/catalase. Accessed 28 May. 2022.

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More Definitions for catalase

catalase

noun
cat·​a·​lase | \ ˈkat-ᵊl-ˌās, -ˌāz How to pronounce catalase (audio) \

Medical Definition of catalase

: a red crystalline enzyme that consists of a protein complex with hematin groups and catalyzes the decomposition of hydrogen peroxide into water and oxygen

Other Words from catalase

catalatic \ ˌkat-​ᵊl-​ˈat-​ik How to pronounce catalase (audio) \ adjective

More from Merriam-Webster on catalase

Britannica.com: Encyclopedia article about catalase

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