innate immune system(redirected from Non specific immunity)
Also found in: Dictionary.
innate immune system
The component of the immune system in animals that is genetically determined and is nonspecific, as distinguished from the adaptive immune system. Elements of the system include mucous secretions, complement proteins, and certain white blood cells, especially neutrophils, macrophages, and dendritic cells.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.