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.

3-aminopyridine-2-carboxaldehyde thiosemicarbazone
(3-uh-MEE-noh-PEER-ih-deen-2-KAR-bok-SAL-deh-hide THY-oh-SEH-mee KAR-buh-ZONE)
A substance being studied in the treatment of cancer. It is a type of ribonucleotide reductase inhibitor. Also called 3-AP and Triapine.