The American Heritage® Dictionary of the English Language, 4th Edition
n. Any of various substances released by T cells that have been activated by antigens. They function in the immune response through a variety of actions, including stimulating the production of nonsensitized lymphocytes and activating macrophages.
n. Any of a group of cytokines produced by lymphocytes
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. a cytokine secreted by helper T cells in response to stimulation by antigens and that acts on other cells of the immune system (as by activating macrophages)
Word Usage
"Inflammatory bowel disease mucosal biopsies have specialized lymphokine mRNA profiles."