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[aw-toh-an-ti-bod-ee, -an-tee-] /ˌɔ toʊˈæn tɪˌbɒd i, -ˈæn ti-/
noun, plural autoantibodies. Immunology
an antibody that an organism produces against any of its own tissues, cells, or cell components.
1905-10; auto-1 + antibody Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for autoantibody
  • The ultimate cause of the altered levels of autoantibody in anorexics and bulimics is unresolved as yet.
British Dictionary definitions for autoantibody


noun (pl) -bodies
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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autoantibody in Medicine

autoantibody au·to·an·ti·bod·y (ô'tō-ān'tĭ-bŏd'ē)
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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autoantibody in Science
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 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.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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