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NCI Dictionary of Cancer Terms

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5-fluoro-2-deoxycytidine  listen  (5-FLOOR-oh-2-dee-OK-see-SY-tih-deen)

  A substance being studied in the treatment of some types of cancer. It may prevent the growth of tumors by stopping cancer cells from dividing and by killing them. It is a type of antimetabolite. Also called FdCyd.