has characteristic output of CD8-positive, alpha-beta T cell memory T cell CD8-positive, alpha-beta memory T cell CD8-positive, alpha-beta memory T-lymphocyte CD8-positive, alpha-beta memory T lymphocyte CD8-positive, alpha-beta memory T-cell T.8Mem.Sp A CD8-positive, alpha-beta T cell that has differentiated into a memory T cell. T cell activation involved in immune response memory T cell differentiation increased life span