a lymphokine protein, secreted by T cells, that participates in the regulation of blood-cell production. Abbreviation: IL-3
Origin of interleukin 3
First recorded in 1980–85; see origin at interleukin 1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Medicine definitions for interleukin-3
A lymphokine, released by helper T cells in response to an antigen or mitogen, that stimulates the growth of blood stem cells and lymphoid cells such as macrophages and mast cells.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.