NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 8,179 terms related to cancer and medicine.

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apoptosis
(A-pop-TOH-sis)
A type of cell death in which a series of molecular steps in a cell lead to its death. This is one method the body uses to get rid of unneeded or abnormal cells. The process of apoptosis may be blocked in cancer cells. Also called programmed cell death.