T-Lymphocyte and Natural Killer Cell
t-lymphocyte and natural killer cell
"Group of lymphocytes. A T-lymphocyte is a white blood cell differentiated in the thymus that possesses highly specific cell-surface antigen receptors. A natural killer cell resembles a T-lymphocyte, but it does not express markers of either T or B cell lineage. Its cytotoxic activity is not antibody dependent."