: 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 fruit is high in digestive enzymes known as tannins that can slow down the digestion of starch, reducing the amount of carbohydrates your body absorbs from eating.
—
Cristina Mutchler, Verywell Health, 22 Dec. 2025
Formulated with enzymes and surfactants, laundry detergent is a versatile cleaning agent handy for other chores in a pinch, including doing the dishes and dissolving clogs.
—Jolie Kerr, Better Homes & Gardens, 22 Dec. 2025
The National Organization for Rare Disorders states that it is characterized by a complete or partial lack of the carbamoyl phosphate synthetase (CPS) enzyme, one of five that play a role in the breakdown and removal of nitrogen from the body.
—Charlotte Phillipp, PEOPLE, 21 Dec. 2025
When that bursts, the chromosome is made vulnerable to nucleuses — enzymes that can break DNA apart.
—Noah Lyons, San Diego Union-Tribune, 19 Dec. 2025
See All Example Sentences for enzyme
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Cristina Mutchler, Verywell Health, 22 Dec. 2025
Formulated with enzymes and surfactants, laundry detergent is a versatile cleaning agent handy for other chores in a pinch, including doing the dishes and dissolving clogs.
—Jolie Kerr, Better Homes & Gardens, 22 Dec. 2025
The National Organization for Rare Disorders states that it is characterized by a complete or partial lack of the carbamoyl phosphate synthetase (CPS) enzyme, one of five that play a role in the breakdown and removal of nitrogen from the body.
—Charlotte Phillipp, PEOPLE, 21 Dec. 2025
When that bursts, the chromosome is made vulnerable to nucleuses — enzymes that can break DNA apart.
—Noah Lyons, San Diego Union-Tribune, 19 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 23 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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