# polycomb

> English word · Noun

## Definitions
1. A protein (or one of a larger group) whose function is to modify gene expression via changes to chromatin

## Etymology
From poly- + comb, in reference to the sex comb.

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