: 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
Certain fungi use enzymes to break down complex organic matter through stepwise reactions.
—
Neetika Walter, Interesting Engineering, 23 Feb. 2026
Eating pineapple regularly may support better digestion, enhance pain relief, and improve vascular health, thanks to bromelain, a powerful enzyme found in the fruit.
—Brittany Lubeck, Verywell Health, 23 Feb. 2026
Elevated liver enzymes, a potential risk for liver toxicity, was reported by 13% of patients.
—Adam Feuerstein, STAT, 23 Feb. 2026
Mayonnaise that separates or develops watery pools is breaking down due to bacterial enzymes.
—Lynn Andriani, Martha Stewart, 21 Feb. 2026
See All Example Sentences for enzyme
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Neetika Walter, Interesting Engineering, 23 Feb. 2026
Eating pineapple regularly may support better digestion, enhance pain relief, and improve vascular health, thanks to bromelain, a powerful enzyme found in the fruit.
—Brittany Lubeck, Verywell Health, 23 Feb. 2026
Elevated liver enzymes, a potential risk for liver toxicity, was reported by 13% of patients.
—Adam Feuerstein, STAT, 23 Feb. 2026
Mayonnaise that separates or develops watery pools is breaking down due to bacterial enzymes.
—Lynn Andriani, Martha Stewart, 21 Feb. 2026
See All Example Sentences for enzyme
Cite this Entry
“Enzyme.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/enzyme. Accessed 28 Feb. 2026.
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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