# trimethylation

> English word · Noun

## Definitions
1. The addition of three methyl groups, especially to an amine of a chromatin.

## Etymology
From tri- + methyl + -ation.

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