enzyme

noun
en·​zyme | \ ˈen-ˌzīm How to pronounce enzyme (audio) \

Definition of enzyme

: any of numerous complex proteins that are produced by living cells and catalyze specific biochemical reactions at body temperatures

Examples of enzyme in a Sentence

Recent Examples on the Web The half-line of decline in mitochondrial enzyme is 12 days, which means 12 days of detraining requires 36 days of re-training to return to the same levels, according to Coyle. Kelly O'mara, Outside Online, 27 Mar. 2014 Then, for about a month and a half, her liver enzyme levels were coming back off-the-charts high. Los Angeles Times, 27 June 2022 Magnesium is a mineral that helps muscles relax, promotes bone health, improves sleep quality and quantity, supports hundreds of enzyme mechanisms and functions, and is required for sound cellular health. The Salt Lake Tribune, 9 June 2022 Perhaps this lineage spilled back into animals at some point, and continued to accrue mutations through a similar antiviral enzyme process in that species before crossing over into humans once again. Andrew Joseph, STAT, 3 June 2022 During adulthood, many people (including about 2/3 of the world’s population) lose the ability to make the enzyme lactase, which breaks down lactose into its component parts. Dr. Keith Roach, oregonlive, 19 May 2022 The enzyme is normally concentrated in the liver, kidneys and brain. Rachel Yehuda, Scientific American, 18 June 2022 Consistently, in structural biology analyses, the different substitutions reduced the number of interactions between the inhibitor and the enzyme. William A. Haseltine, Forbes, 9 June 2022 So, the idea that RNA could, not just carry information, but be the enzyme needed to help, say, replicate. Quanta Magazine, 1 June 2022 See More

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

First Known Use of enzyme

1881, in the meaning defined above

History and Etymology for enzyme

German Enzym, from Middle Greek enzymos leavened, from Greek en- + zymē leaven — more at juice

Learn More About enzyme

Statistics for enzyme

Last Updated

27 Jul 2022

Cite this Entry

“Enzyme.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/enzyme. Accessed 18 Aug. 2022.

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More Definitions for enzyme

enzyme

noun
en·​zyme | \ ˈen-ˌzīm How to pronounce enzyme (audio) \

Kids Definition of enzyme

: a substance produced by body cells that helps bring about or speed up bodily chemical activities (as the digestion of food) without being destroyed in so doing

enzyme

noun
en·​zyme | \ ˈen-ˌzīm How to pronounce enzyme (audio) \

Medical Definition of enzyme

: any of numerous complex proteins that are produced by living cells and catalyze specific biochemical reactions at body temperatures

More from Merriam-Webster on enzyme

Nglish: Translation of enzyme for Spanish Speakers

Britannica English: Translation of enzyme for Arabic Speakers

Britannica.com: Encyclopedia article about enzyme

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