any antigen-bearing foreign material that enters the body and normally stimulates an attack by the body's immune system (distinguished from self).
- nonsense correlation,
- nonsense syllable,
- nonsense triplet
Origin of nonself
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
That which the immune system identifies as foreign to the body.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.