NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,378 terms related to cancer and medicine.
We offer a widget that you can add to your website to let users look up cancer-related terms. Get NCI’s Dictionary of Cancer Terms Widget.
- DNA methylase
- listen (… MEH-thih-LAYS)
- An enzyme (a protein that speeds up chemical reactions in the body) that attaches methyl groups to DNA. A methyl group is a chemical group containing one carbon and three hydrogen atoms. Also called DNA methyltransferase.