: 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
Effects on Cholesterol and Blood Pressure Green tea catechins may block enzymes that break down carbohydrates, proteins, and fats.
—
Merve Ceylan, Health, 3 Feb. 2026
Once activated with water, rice powder and rice extract gently buff away dullness, while papaya enzymes dissolve dead skin cells without any harsh scrubbing.
—Lily Wohlner, Allure, 1 Feb. 2026
The guests complained about the strong smell of smoke in a rental one time, but OdoBan got rid of it when the expensive enzyme sprays didn't.
—Ashlyn Needham, The Spruce, 31 Jan. 2026
Sulfur is the 10th most abundant element in the universe and a critical component of amino acids, proteins and enzymes on Earth.
—Jacopo Prisco, CNN Money, 30 Jan. 2026
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Merve Ceylan, Health, 3 Feb. 2026
Once activated with water, rice powder and rice extract gently buff away dullness, while papaya enzymes dissolve dead skin cells without any harsh scrubbing.
—Lily Wohlner, Allure, 1 Feb. 2026
The guests complained about the strong smell of smoke in a rental one time, but OdoBan got rid of it when the expensive enzyme sprays didn't.
—Ashlyn Needham, The Spruce, 31 Jan. 2026
Sulfur is the 10th most abundant element in the universe and a critical component of amino acids, proteins and enzymes on Earth.
—Jacopo Prisco, CNN Money, 30 Jan. 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 9 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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