autoantibody

[aw-toh-an-ti-bod-ee, -an-tee-]
noun, plural au·to·an·ti·bod·ies. Immunology.
  1. an antibody that an organism produces against any of its own tissues, cells, or cell components.

Origin of autoantibody

First recorded in 1905–10; auto-1 + antibody
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for autoantibody

autoantibody

noun plural -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

autoantibody in Medicine

autoantibody

[ô′tō-ăntĭ-bŏd′ē]
n.
  1. An antibody that attacks the cells, tissues, or native proteins 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.

autoantibody in Science

autoantibody

[ô′tō-ăntĭ-bŏd′ē]
  1. 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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.