Immunol.
any of several types of lymphocyte or leukocyte capable of destroying cells that have acquired foreign characteristics, as a tumor cell or virus-infected cell.
Immunol.
any of several types of lymphocyte or leukocyte capable of destroying cells that have acquired foreign characteristics, as a tumor cell or virus-infected cell.
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012