: 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
Dish and Laundry Detergent The active ingredients in dishwashing and laundry detergents (enzymes and surfactants) eventually break down, which can lead to a loss in effectiveness and strange odors.
—
Louise Parks,
Martha Stewart,
27 June 2026
Careful study revealed that three of the clusters produce antibiotics molecules—stravidins, acidomycins, dapamycins—that each thwart a different enzyme in the biotin biosynthesis pathway.
—
Beth Mole,
ArsTechnica,
26 June 2026
In a 2020 research review, green tea helped lower liver enzymes in people with non-alcoholic fatty liver disease.
—
Lindsey Desoto,
Health,
26 June 2026
It’s formulated with glycolic acid and fruit enzymes to exfoliate the skin and reveal a smoother, brighter complexion.
—
People Deals Team,
PEOPLE,
25 June 2026
See All Example Sentences for enzyme
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Louise Parks,
Martha Stewart,
27 June 2026
Careful study revealed that three of the clusters produce antibiotics molecules—stravidins, acidomycins, dapamycins—that each thwart a different enzyme in the biotin biosynthesis pathway.
—
Beth Mole,
ArsTechnica,
26 June 2026
In a 2020 research review, green tea helped lower liver enzymes in people with non-alcoholic fatty liver disease.
—
Lindsey Desoto,
Health,
26 June 2026
It’s formulated with glycolic acid and fruit enzymes to exfoliate the skin and reveal a smoother, brighter complexion.
—
People Deals Team,
PEOPLE,
25 June 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 3 Jul. 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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