: any of the lymphocytes that have antigen-binding antibody molecules on the surface, that comprise the antibody-secreting plasma cells when mature, and that in mammals differentiate in the bone marrow b cell
- After contacting antigens, cells known as B lymphocytes mature and produce antibodies.
- —David Baltimore and Carole Heilman
— compare t lymphocyte
- With lupus erythematosus, an autoimmune condition …, the B lymphocytes go out of control and begin producing all types of antibodies, which then begin to attack the body's immune cells.
- —Betsy Sikora Siino