Definitions for "Killer T cells"
Killer cells infected with HIV or other viruses or transformed by cancer. Also known as cytotoxic T cells (or cytotoxic T lymphocytes). See also NULL CELL; T CELLS.
Because viruses lurk inside the host cells where antibodies cannot reach them, the only way they can be eliminated is by killing the infected host cell, this is where the Killer T cell comes in. These cells only act when they encounter another cell that carries a "marker" that links it to a foreign protein.
See cytoxic T cells.