methylation

From methyl +‎ -ation.

• IPA^(key): /ˌmɛθɪˈleɪʃən/

• Audio (US):

  (file)

• Rhymes: -eɪʃən

methylation (countable and uncountable, plural methylations)

English Wikipedia has an article on:

methylation

Wikipedia

1. (chemistry) The addition of a methyl group to a molecule.
2. (genetics) The addition of a methyl group to cytosine and adenine residues in DNA that leads to the epigenetic modification of DNA and the reduction of gene expression and protein production.

• ethylation
• methylate