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IgE

Immunology.
  1. immunoglobulin E: a class of antibodies most abundant in tissue spaces, involved in the expulsion of intestinal parasites and causing allergic reactions by activating the release of histamines and leukotrienes in response to certain foreign antigens.
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Origin of IgE

First recorded in 1960–65
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018