NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,899 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.

autoimmune disease
(AW-toh-ih-MYOON dih-ZEEZ)
A condition in which the body recognizes its own tissues as foreign and directs an immune response against them.