allergen(redirected from aqueous allergen)
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any substance capable of inducing an allergy
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
Any antigen, such as pollen, a drug, or food, that induces an allergic state in humans or animals.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.