coenzyme

1 of 2

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

coenzymatic

2 of 2

adjective

co·​en·​zy·​mat·​ic (ˌ)kō-ˌen-zə-ˈma-tik 

-(ˌ)zī-

: of or relating to a coenzyme

coenzymatic activity

coenzymatically

(ˌ)kō-ˌen-zə-ˈma-ti-k(ə-)lē 

-(ˌ)zī-

adverb

Examples of coenzyme in a Sentence

Recent Examples on the Web

Noun

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

Those ingredients include coenzyme Q10 (a naturally occurring antioxidant that helps energize skin cells and defend against collagen breakdown) and L-carnitine (an amino acid derivative involved in fat metabolism) to improve the look of firmness over time. —Christa Joanna Lee, Allure, 1 May 2026

Popular examples include coenzyme Q10, resveratrol, green tea, and vitamin C. Peptides: A type of amino acid that encourages the skin to produce more collagen and elastin. —Tatiana Boncompagni, InStyle, 22 Jan. 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

Word History

Etymology

Adjective

from coenzyme, after such pairs as English enzyme : enzymatic

First Known Use

Noun

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