helper T cell

noun

, Immunology.

1. a T cell that stimulates B cells to produce antibody against a foreign substance, using lymphokines or direct contact as a signal.

helper T-cell

noun

1. See T-lymphocyte
   See T-lymphocyte

helper T cell

/ hĕl′pər /

1. Any of various T cells that, when stimulated by a specific antigen, release lymphokines that promote the activation and function of B cells and killer T cells.