Immunol.
a T cell that stimulates B cells to produce antibody against a foreign substance, using lymphokines or direct contact as a signal. Also called T helper cell .
Immunol.
a T cell that stimulates B cells to produce antibody against a foreign substance, using lymphokines or direct contact as a signal. Also called T helper cell .
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012