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enzyme

noun

en·​zyme ˈen-ˌzīm How to pronounce enzyme (audio)
: 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
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.
Tips for Better Stain Removal Use a good-quality stain remover and laundry detergent that contain enough enzymes to break apart the bond between stains and fabrics in any water temperature. Mary Marlowe Leverette, Southern Living, 24 Nov. 2025 Gene therapy treatment Also known as mucopolysaccharidosis type II (MPS II), this syndrome is caused by a faulty gene that prevents the body from producing a vital enzyme. Mrigakshi Dixit, Interesting Engineering, 24 Nov. 2025 This antiaging overnight mask contains AHAs, retinol and papaya enzymes to exfoliate the skin and smooth texture without irritation. Bestreviews, Mercury News, 23 Nov. 2025 Infused with lip-loving ingredients such as squalane, sunflower oil, and papain enzyme, the formulation also moisturizes, soothes, and conceals the appearance of fine lines. Jenny Berg, Vogue, 22 Nov. 2025 See All Example Sentences for enzyme

Word History

Etymology

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

First Known Use

1881, in the meaning defined above

Time Traveler
The first known use of enzyme was in 1881

Cite this Entry

“Enzyme.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/enzyme. Accessed 28 Nov. 2025.

Kids Definition

enzyme

noun
en·​zyme ˈen-ˌzīm How to pronounce enzyme (audio)
: any of various complex proteins produced by living cells that bring about or speed up reactions (as in the digestion of food) without being permanently altered
enzymatic
ˌen-zə-ˈmat-ik
adjective
enzymatically
-ˈmat-i-k(ə-)lē
adverb

Medical Definition

enzyme

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

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