: 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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Protein is an important nutrient that plays many roles in your body, such as building and repairing tissues, producing enzymes and hormones, and supporting your immunity.
—
Johna Burdeos, Health, 3 Feb. 2025
The most common of these are aspirin and ibuprofen.
NSAIDs work by blocking the work of two enzymes called Cox-1 and Cox-2.
—Dan Perry, Newsweek, 31 Jan. 2025
It is caused by the body's inability to produce an enzyme called lactase.
—Amber J. Tresca, Verywell Health, 31 Jan. 2025
The latter is for medicines that block the B1 receptors found in the heart, which when activated, focus on elevated heart rate, increasing pumping force and releasing a kidney enzyme called renin.
—Krystal Nurse, USA TODAY, 13 Jan. 2025
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Johna Burdeos, Health, 3 Feb. 2025
The most common of these are aspirin and ibuprofen.
NSAIDs work by blocking the work of two enzymes called Cox-1 and Cox-2.
—Dan Perry, Newsweek, 31 Jan. 2025
It is caused by the body's inability to produce an enzyme called lactase.
—Amber J. Tresca, Verywell Health, 31 Jan. 2025
The latter is for medicines that block the B1 receptors found in the heart, which when activated, focus on elevated heart rate, increasing pumping force and releasing a kidney enzyme called renin.
—Krystal Nurse, USA TODAY, 13 Jan. 2025
See all Example Sentences for enzyme
Dictionary Entries Near enzyme
Cite this Entry
“Enzyme.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/enzyme. Accessed 8 Feb. 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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