killer cell

any of various cells that destroy germs, infected cells, etc.; esp., a lymphocyte () that destroys infected or cancerous cells by releasing proteins that damage the cell membranes of the target cells

See killer cell in American Heritage Dictionary 4

noun
Any of various large differentiated T cells that recognize and lyse target cells bearing a specific foreign antigen, usually by infection with a virus, and that also function in defense against cancer cells. Also called cytotoxic T cell, killer T cell.

Learn more about killer cell

link/cite print suggestion box