# proteasome

> English word · Noun · frequency rank #82,690

## Definitions
1. A complex protein, found in bacterial, archeal and eukaryotic cells, that breaks down other proteins via proteolysis.

## Etymology
From protease + -some.

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