a nongranular variety of leukocyte formed in lymphatic tissue, important in the synthesis of antibodies
Origin of lymphocytelympho- + -cyte
Any of the nearly colorless cells found in the blood, lymph, and lymphoid tissues, constituting approximately 25 percent of white blood cells in humans and including B cells, which function in humoral immunity, and T cells, which function in cellular immunity.
- (cytology, immunology) A type of white blood cell or leukocyte that is divided into two principal groups and a null group; B-lymphocytes, which produce antibodies in the humoral immune response, T-lymphocytes, which participate in the cell-mediated immune response and the null group, which contains natural killer cells, cytotoxic cells that participate in the innate immune response.
lympho- +â€Ž -cyte