NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,791 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.

beta alethine
(BAY-tuh a-LEH-theen)
A substance that is being studied in the treatment of cancer. It belongs to a family of chemicals called disulfides.