lymphokine
- n a cytokine secreted by helper T cells in response to stimulation by antigens and that acts on other cells of the immune system (as by activating macrophages)
lymphoma
- n a neoplasm of lymph tissue that is usually malignant; one of the four major types of cancer
lymphopathia venereum
- n infectious disease caused by a species of chlamydia bacterium; transmitted by sexual contact; characterized by genital lesions and swelling of lymph nodes in the groin
lymphopenia
- n an abnormally small number of lymphocytes in the circulating blood
lymphopoiesis
- n the formation of lymphocytes in the bone marrow and lymph nodes and thymus and spleen
lynch law
- n the practice of punishing people by hanging without due process of law
lynch mob
- n a mob that kills a person for some presumed offense without legal authority