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 analysis
(jeh-NEH-tik uh-NA-lih-sis)
The study of a sample of DNA to look for mutations (changes) that may increase risk of disease or affect the way a person responds to treatment.