IPA: //koʊˈɛnzaɪm//
KK: /koʊˈɛnzaɪm/
A type of organic substance that works with a specific protein to help enzymes function properly, often containing vitamins or minerals.
Vitamins often act as coenzymes in various biochemical reactions in the body.
Coenzyme is formed from "co-" (meaning together) and "enzyme" (from Greek "enzymon", meaning leaven or ferment). The word refers to a substance that works together with an enzyme to enhance its activity.
Think of 'working together' ('co-') with a 'ferment' ('enzyme') to help a process — that's what a coenzyme does.