[ree-ey-jin, -gin]
noun Immunology.
Also called Wassermann antibody. an antibody formed in response to syphilis and reactive with cardiolipin in various blood tests for the disease.
an antibody found in certain human allergies, as hay fever and asthma.

1910–15; < German Reagin, equivalent to reag(ieren) to react + -in -in2 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To reagin
World English Dictionary
reagin (ˈrɪədʒɪn)
immunol a type of antibody that is formed against an allergen and is attached to the cells of a tissue. The antigen--antibody reaction that occurs on subsequent contact with the allergen causes tissue damage, leading to the release of histamine and other substances responsible for an allergic reaction
[C20: from German reagieren to react + -in]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Medical Dictionary

reagin re·a·gin (rē-ā'jĭn)

  1. An antibody found in the blood of individuals having a genetic predisposition to allergies such as asthma and hay fever.

  2. A substance present in the blood of individuals having a positive serological test for syphilis.

re'a·gin'ic (rē'ə-jĭn'ĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature