B lymphocyte
nounDefinition of B lymphocyte
: 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 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
— compare t lymphocyte
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