NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,804 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.

genetic marker of susceptibility
(jeh-NEH-tik MAR-ker … suh-SEP-tih-BIH-lih-tee)
A specific change in a person’s DNA that makes the person more likely to develop certain diseases such as cancer.