NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,812 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.

2-methoxyestradiol
(2-meh-THOK-see-es-truh-DY-ol)
2ME2. A drug that prevents the formation of new blood vessels that tumors need in order to grow. It is derived from estrogen and belongs to the family of drugs called angiogenesis inhibitors.