As nouns the difference between monocyte and lymphocyte

is that monocyte is (immunology|cytology) a type of blood leukocyte that differentiates into a macrophage while lymphocyte is (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.