A lymphocyte is a type of white blood cell that helps protect our body from diseases. It is an important part of our immune system and fights against infections and harmful substances. Full definition
Hoping to learn something about how the human body defends itself against cancer, he had zeroed in on a complex regiment of lymphocytes called T cells, common to the immune systems in both mouse and man. (fortune.com)
The role of B lymphocytes in producing protective antibodies that are secreted into the intestine is well - recognized. (sciencedaily.com)
Antibodies, known generally as immunoglobulins, are made and secreted by B lymphocytes in response to stimulation by antigens. (hvtn.org)