# coenzyme

> English word · Noun · frequency rank #58,604

## Definitions
1. Any small molecule that is necessary for the functioning of an enzyme.

## Etymology
From co- + enzyme.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/coenzyme