Origin: Latin prefix inter-
Interleukin has 2 different meanings across 1 category:
any of several lymphokines that promote macrophages and killer T cells and B cells and other components of the immune system
"Researchers discovered that a surge in interleukin levels helped activate the body's defense mechanisms against the new virus."
Any of a group of cytokine proteins important in the regulation of lymphocyte function.
"The researchers discovered that blocking interleukin-2 production significantly reduced the activation of T cells in the tumor microenvironment."