natural killer cell

Pronunciation: (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.

Source: NCI Dictionary of Cancer Terms

Caption: Blood cell development. A blood stem cell goes through several steps to become a red blood cell, platelet, or white blood cell.

Date last modified: 2014-10-28