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nonself

[non-self] /nɒnˈsɛlf/
noun, Immunology
1.
any antigen-bearing foreign material that enters the body and normally stimulates an attack by the body's immune system (distinguished from self).
Origin
1870-1875
1870-75; non- + self
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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nonself in Medicine

nonself non·self (nŏn-sělf')
n.
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.
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