Definitions for "T lymphocyte"
Same as T cell.
thymus-dependent lymphocyte that matures in the thymus; important in cell-mediated immunity and helping B cells.
(T Cells) A white blood cell that recognises foreign proteins (e.g. bacteria, transplanted tissue) and mobilises other cells to destroy the invading organism or foreign tissue. HIV infects certain T lymphocytes (CD4 lymphocytes), thereby causing immunodeficiency.