'nonself' definitions:

Definition of 'nonself'

From: GCIDE
  • nonself \non"self`\, n.
  • 1. That which is not oneself. [PJC]
  • 2. (Immunology) Any material that enters the body and is not recognized by the immune system as being part of its body, thereby triggering an immune response; any material appearing to the immune system to be foreign to its body. [PJC]