NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 7,926 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.

A protein found on the surface of some immune system cells, including B cells and monocytes. Cells with CD80 on their surface cause T cells to make substances that help control immune responses. Also called B7-1.