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killer cell

killer cell

1 4.3
A white blood cell that finds and kills virus-infected cells
  • noun
  • /ˈkɪlər sɛl/
  • Specialized
translation icon : célula asesina
  • Researchers found that killer cells play a crucial role in eliminating infected cells during viral infections.
  • natural killer cells
  • killer cell markers

Examples

  • Moving forward, Krupnick and his team want to learn whether natural killer cells influence lung cancer susceptibility in people.

    Blog text (15)
  • They can increase natural killer cell activity that combats viral infections.

    Blog text (15)
  • One of them said that there are killer cells that attack the ones that are viral.

    Fiction book (2001)
  • Their studies indicate that natural killer cells, not other types of immune cells like T cells or inflammatory cells, are responsible for this phenomenon.

    Blog text (15)
  • But in lung cancer, scientists suspect that T cells become inactivated, which may give natural killer cells a more prominent role.

    Blog text (15)
  • When the researchers depleted natural killer cells from the mice using an antibody, those that had been resistant to lung cancer developed large, aggressive tumors.

    Blog text (15)
  • In a healthy immune response, killer cells identify and destroy virus-infected cells.

  • The patient's recovery was aided by an increase in killer cells that target cancerous tumors.

Synonyms

cytotoxic T cell
vskiller cell
  • Specialized
5.5

A white blood cell with a CD8 marker that kills infected or cancer cells

focuses on recognizing and destroying virus infected cells
CD8 T cell
vskiller cell
  • Specialized
4.6

A kind of immune cell that finds and kills cells infected by viruses

is defined by having a CD8 receptor and targeting virus infected cells
CD8 cell
vskiller cell
  • Specialized
5.5

A type of white blood cell that finds and kills virus-infected or abnormal cells

limits its role to virus infected cells rather than other abnormal ones
killer T cell
vskiller cell
  • Specialized
5.2

A white blood cell that finds and destroys virus-infected or cancerous body cells

is specific to virus infected cells and does not emphasise cancerous targets

Surface Forms

killer cell singular
killer cells plural

Morphology

killer + cell

The compound 'killer cell' is compositionally predictable: a B1 learner who knows 'killer' (one that kills) and 'cell' (biological unit) can infer it denotes a cell that kills other cells or targets. While the precise immunological details (CD8, T‑cell subtype, virus‑infected targets) are specialist knowledge, the basic meaning follows a common modifier+noun pattern found across languages and is immediately understandable from its parts.

Etymology

Killer cell creates a strong picture: a tiny cell that 'kills' bad or infected cells, like a little hunter in the body. That's why killer cell means an immune cell that seeks out and destroys virus-infected cells.