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Natural killer cells


  • K cells
  • killer cells
  • K lymphocyte
  • large granular lymphocyte
  • NK cells


White blood cells that kill tumor- and virus-infected cells as part of the body's immune system.

Definition from: Psychological Index Terms via Unified Medical Language SystemThis link leads to a site outside Genetics Home Reference. at the National Library of Medicine

A type of white blood cell that contains granules with enzymes that can kill tumor cells or microbial cells.

Definition from:  National Cancer Institute dictionaryThis link leads to a site outside Genetics Home Reference.

Related discussion in the Handbook

See also Understanding Medical Terminology.

Published: February 1, 2016