Medical Term:

reagin

Pronunciation: rē-ā′jin

Definition:

  1. Wolff-Eisner term for antibody.
  2. Old term for the “Wassermann” antibody; not to be confused with the Prausnitz-Küstner antibody.
  3. Antibodies that mediate immediate hypersensitivity reactions (IgE in humans).

Synonym(s): homocytotropic antibody

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