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

Examples of enzyme in a Sentence

Recent Examples on the Web

Marinating certain foods for too long can negatively affect the texture and flavor because the salts, acids, and enzymes in marinades begin to alter proteins and plant cell structures over time. — Olivia McIntosh, Martha Stewart, 13 Aug. 2026

That damage can interfere with the body's ability to absorb nutrients and can cause symptoms extending well beyond the digestive system, including fatigue, anemia, neurological problems and elevated liver enzymes. — Christina Dugan Ramirez, FOXNews.com, 11 Aug. 2026

But a much easier way to do this is to use a laundry detergent with enzymes that target odors and oils. — Emily Farris, Bon Appetit Magazine, 11 Aug. 2026

Selenium is a key component of various types of protein and enzymes throughout the body while also helping to form DNA. — Christina Manian, Better Homes & Gardens, 11 Aug. 2026

Word History

Etymology

German Enzym, from Middle Greek enzymos leavened, from Greek en- + zymē leaven — more at juice

First Known Use

1881, in the meaning defined above

Phrases Containing enzyme

• angiotensin converting enzyme
• enzyme-linked immunosorbent assay
• restriction enzyme

Rhymes for enzyme

• airtime
• bedtime
• daytime
• downtime
• halftime
• lifetime
• longtime
• lunchtime
• mealtime
• meantime
• nighttime
• noontime

Kids 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

ˌen-zə-ˈmat-ik

adjective

enzymatically

-ˈmat-i-k(ə-)lē

adverb

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