Definition of Killer cell

1. Noun. T cell with CD8 receptor that recognizes antigens on the surface of a virus-infected cell and binds to the infected cell and kill it.


Medical Definition of Killer cell

1. 1. Mammalian cells which can lyse antibody coated target cells. They have a receptor for the Fc portion of IgG and are probably of the mononuclear phagocyte lineage, though some may be lymphocytes. Not to be confused with cytotoxic T-cells which recognise targets by other means and are clearly a sub set of T lymphocytes. This confusion exists in the early literature. 2. Natural killer cell are CD3 negative large granular lymphocytes, mediating cytolytic reactions that do not require expression of Class I or II major histocompatibility antigens on the target cell. 3. Lymphokine activated killer cells are NK cells activated by interleukin-2 (LAK cells). (13 Nov 1997)

Lexicographical Neighbors of Killer Cell

killcows
killcrop
killcrops
killdee
killdeer
killdeer
killdeers
killdeer plover
killdees
killed
killer
killer
killers
killer bee
killer cell (current term)
killer cell (current term)
killer cells
killer plasmid
killer T-cell
killer T cell
killer whale
killer yeast
Killian's bundle
Killian's operation
Killian's triangle
killick
killicks
killie
killies
killifish

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