Any of the lymphocytes that develop in the thymus gland and that act in the immune system by binding antigens to receptors on the surface of their cells in what is called the cell-mediated immune response. T cells are also involved in the regulation of the function of B cells. Also called T lymphocyte. See more at cell-mediated immune response, Compare B cell.
|T lymphocyte also T-lymphocyte
See T cell.