NCI Dictionary of Cancer Terms

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The NCI Dictionary of Cancer Terms features 8,041 terms related to cancer and medicine.

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natural killer cell
(NA-chuh-rul KIH-ler sel)
A type of immune cell that has granules (small particles) with enzymes that can kill tumor cells or cells infected with a virus. A natural killer cell is a type of white blood cell. Also called NK cell and NK-LGL.