reagin

reagin

[ree-ey-jin, -gin]
noun Immunology.
1.
Also called Wassermann antibody. an antibody formed in response to syphilis and reactive with cardiolipin in various blood tests for the disease.
2.
an antibody found in certain human allergies, as hay fever and asthma.

Origin:
1910–15; < German Reagin, equivalent to reag(ieren) to react + -in -in2

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World English Dictionary
reagin (ˈrɪədʒɪn)
 
n
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]

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Medical Dictionary

reagin re·a·gin (rē-ā'jĭn)
n.

  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
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