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autoantibody

[aw-toh-an-ti-bod-ee, -an-tee-] /ˌɔ toʊˈæn tɪˌbɒd i, -ˈæn ti-/
noun, plural autoantibodies. Immunology
1.
an antibody that an organism produces against any of its own tissues, cells, or cell components.
Origin
1905-1910
1905-10; auto-1 + antibody
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for autoantibodies

autoantibody

/ˌɔːtəʊˈæntɪˌbɒdɪ/
noun (pl) -bodies
1.
an antibody reacting with an antigen that is a part of the organism in which the antibody is formed
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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autoantibodies in Medicine

autoantibody au·to·an·ti·bod·y (ô'tō-ān'tĭ-bŏd'ē)
n.
An antibody that attacks the cells and tissues of the organism in which it was formed.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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autoantibodies in Science
autoantibody
  (ô'tō-ān'tĭ-bŏd'ē)   
An antibody that reacts with the cells, tissues, or native proteins of the individual in which it is produced. Autoimmune diseases are caused by the presence of autoantibodies.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Encyclopedia Article for autoantibodies

autoantibody

harmful antibody that attacks components of the body called self antigens. Normally autoantibodies are routinely eliminated by the immune system's self-regulatory process-probably through the neutralization of autoantibody-producing lymphocytes before they mature. At times this process fails, and antibodies that react to self constituents proliferate.

Learn more about autoantibody with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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