: 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
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Sulforaphane, which is abundant in broccoli sprouts, cauliflower, kale, and cabbage, is a phytochemical that is believed to support the body’s detoxification enzymes and act as an antioxidant.
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Vogue, 12 Dec. 2025
And milk thistle—which is more supplement than supermarket staple—has mixed evidence on its effects on liver enzyme levels.
—Francesca Krempa, Bon Appetit Magazine, 12 Dec. 2025
By placing these enzymes in different tissues, the scientists independently controlled the same protein in neurons and intestines.
—Aamir Khollam, Interesting Engineering, 12 Dec. 2025
In the second process, a food-friendly enzyme is utilized to promote the creation of naturally occurring sugars in the carob during roasting by inducing a caramelizing reaction.
—New Atlas, 10 Dec. 2025
See All Example Sentences for enzyme
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Vogue, 12 Dec. 2025
And milk thistle—which is more supplement than supermarket staple—has mixed evidence on its effects on liver enzyme levels.
—Francesca Krempa, Bon Appetit Magazine, 12 Dec. 2025
By placing these enzymes in different tissues, the scientists independently controlled the same protein in neurons and intestines.
—Aamir Khollam, Interesting Engineering, 12 Dec. 2025
In the second process, a food-friendly enzyme is utilized to promote the creation of naturally occurring sugars in the carob during roasting by inducing a caramelizing reaction.
—New Atlas, 10 Dec. 2025
See All Example Sentences for enzyme
Cite this Entry
“Enzyme.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/enzyme. Accessed 19 Dec. 2025.
Copy CitationKids Definition
enzyme
noun
en·zyme
ˈen-ˌzīm 
: 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
adjective
ˌen-zə-ˈmat-ik
enzymatically
adverb
-ˈmat-i-k(ə-)lē
Medical Definition
enzyme
noun
en·zyme
ˈen-ˌzīm
: any of numerous complex proteins that are produced by living cells and catalyze specific biochemical reactions at body temperatures
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