: 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
This is because some compounds may affect how drugs are metabolized, particularly those processed by liver enzymes.
—
Daryl Austin, USA Today, 26 Apr. 2026
Chemicals such as peroxide, enzymes, citrate, pyrophosphate and hexametaphosphate break down and dissolve stains.
—Bestreviews, Chicago Tribune, 24 Apr. 2026
Sensory cues can increase saliva, stomach acid, and digestive enzymes to help your body better prepare to break down your meal.
—Kathleen Ferraro, Verywell Health, 24 Apr. 2026
Triple Active Exfoliator features enzyme, acid, and physical exfoliants to gently but powerfully polish and smooth the skin, an amazing mask for face, neck and chest.
—Tory Johnson, ABC News, 23 Apr. 2026
See All Example Sentences for enzyme
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Daryl Austin, USA Today, 26 Apr. 2026
Chemicals such as peroxide, enzymes, citrate, pyrophosphate and hexametaphosphate break down and dissolve stains.
—Bestreviews, Chicago Tribune, 24 Apr. 2026
Sensory cues can increase saliva, stomach acid, and digestive enzymes to help your body better prepare to break down your meal.
—Kathleen Ferraro, Verywell Health, 24 Apr. 2026
Triple Active Exfoliator features enzyme, acid, and physical exfoliants to gently but powerfully polish and smooth the skin, an amazing mask for face, neck and chest.
—Tory Johnson, ABC News, 23 Apr. 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 29 Apr. 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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