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

For persistent urine smells, consider an enzyme cleaner labeled for pet stains. — Jessica Safavimehr, Southern Living, 1 Nov. 2026

True to its name, the formula also contains birch juice, which is packed with amino acids, minerals, enzymes, and antioxidants to soothe inflammation. — Iman Balagam, Vogue, 30 Oct. 2026

The rich, silky formula coats the lips with collagen-boosting peptides, Brazilian acai butter, and African mongongo butter to plump and lock in moisture, while lactic acid and hibiscus flower enzymes buff away dry, flaky texture. — Tasha Nicole Smith, Allure, 30 Oct. 2026

In that project, the company reported making the enzymes 12 times more stable under conditions relevant to industrial use. — Alexandra Harrell, Footwear News, 29 Oct. 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