immunoglobulin E

(redirected from Reaginic antigen)
Also found in: Dictionary, Thesaurus, Medical.
Related to Reaginic antigen: reaginic antibody

immunoglobulin E

[‚im·yə·nō‚gläb·yə·lən ′ē]
(immunology)
A class of immunoglobulins present in minute amounts in normal human serum that is active against parasites and acts as a mediator of immediate hypersensitivity. Abbreviated IgE. Also known as reagin.