Also found in: Dictionary, Encyclopedia.
an interaction between an antibody and an antigen closely related to the antigen that specifically stimulated synthesis of the antibody.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
antibodies evoked by antigens with shared or similar idiotypic determinants may bind or cross-react with each other's respective antigens, even if their antigen-specificity is not identical.
Farlex Partner Medical Dictionary © Farlex 2012
The reaction between an antigen and an antibody that was generated against a different but similar antigen.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
cross-reactionImmunology A partial reaction or 'recognition' of an epitope by an antibody generated in response to another antigen
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.
A specific reaction between an antiserum and an antigen complex other than the antigen complex that evoked the various specific antibodies of the antiserum. It is due to at least one antigenic determinant that is included among the determinants of the other complex.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
cross-reactionThe association of an ANTIBODY with an ANTIGEN that differs from the antigen that first stimulated the production of the antibody. Cross reaction is unlikely unless there is close chemical similarity between the two antigens. Some diseases are believed to result because of antigenic similarities between certain body tissues and parts of infecting organisms, such as STREPTOCOCCI.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005
A reaction that occurs in blood testing when a disease agent reacts to the specific antibody for another disease agent. Cross-reactions are common in blood tests for fluke infections because the different species are closely related.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.