reagin
Pronunciation: rē-ā′jin
Definition:
- Wolff-Eisner term for antibody.
- Old term for the “Wassermann” antibody; not to be confused with the Prausnitz-Küstner antibody.
- Antibodies that mediate immediate hypersensitivity reactions (IgE in humans).
Synonym(s): homocytotropic antibody
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Examples: glitazone, GI cocktail, etc.

