NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,777 terms related to cancer and medicine.
Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.
A drug used to treat some types of cancer, rheumatoid arthritis, and severe skin conditions, such as psoriasis. MTX stops cells from making DNA and may kill cancer cells. It is a type of antimetabolite. Also called amethopterin, methotrexate, and Rheumatrex.