Submitted by György Chityil ... on Sat, 01/20/2018 - 01:15 Hierarchy: NounDescription: {{organic chemistry}} The addition of three methyl groups, especially to an amine of a chromatinNgram: trimethylationNgram Text: trimethylationSource: WiktionaryIssue: 0Wiktionary tag: organic chemistryNgram Count: 1