Glossary Term

Methylation

PCR TermsEN

Definition

The covalent chemical or biochemical addition of a methyl group(s) to a compound. (NCI)

Extended Notes

Source: National Cancer Institute, NCI Thesaurus 26.09d, C16848. NCI definition, reproduced without modification under CC BY 4.0. Source identity and definition checked automatically on 2026-10-20. No individual clinical interpretation or human reviewer is asserted.

Also Known As

Methylation