coenzyme

noun

co·​en·​zyme (ˌ)kō-ˈen-ˌzīm 

: a thermostable nonprotein compound that forms the active portion of an enzyme system after combination with an apoenzyme

coenzymatic

(ˌ)kō-ˌen-zə-ˈma-tik 

-(ˌ)zī-

adjective

coenzymatically

(ˌ)kō-ˌen-zə-ˈma-ti-k(ə-)lē 

-(ˌ)zī-

adverb

Examples of coenzyme in a Sentence

Recent Examples on the Web

These hydrogel eye masks are powered by Bio-NAD, a bioactive coenzyme known for supporting cellular renewal and long-term skin resilience. — Kathryn Hopkins, Footwear News, 16 June 2026

The latter is a form of wellness therapy used to replenish Nicotinamide Adenine Dinucleotide (NAD+), a critical coenzyme found in every cell of your body. — Essence, 13 Jan. 2026

It’s formulated with coenzyme Q-10, creatine, and provitamin B5, which work together to prevent sagging and wrinkle properties. — Jailynn Taylor, InStyle, 5 Jan. 2026

There is evidence that this coenzyme can improve mitochondrial function within cells and also act as an anti- inflammatory. — Dr. Sanjay Gupta, CNN Money, 26 Aug. 2025

Word History

First Known Use

1947, in the meaning defined above

Phrases Containing coenzyme

• acetyl coenzyme A
• coenzyme A
• coenzyme Q

Rhymes for coenzyme

• isoenzyme

Medical Definition

coenzyme

noun

co·​en·​zyme (ˈ)kō-ˈen-ˌzīm 

: a thermostable nonprotein compound that forms the active portion of an enzyme system after combination with an apoenzyme compare activator sense 1

coenzymatic

(ˌ)kō-ˌen-zə-ˈmat-ik, -(ˌ)zī- 

adjective

coenzymatically

-i-k(ə-)lē 

adverb