from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A substance, such as pollen, that causes an allergy.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A substance which causes an allergic reaction.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. any substance that can cause an allergy


German Allergen : Aller(gie), allergy; see allergy + -gen, -gen (from French -gène; see -gen).
(American Heritage® Dictionary of the English Language, Fourth Edition)


  • Cover pillow, mattress, and box spring in allergen-proof casings.

    Environmental allergy control

  • Cover pillows, mattress, and box spring in allergen-proof casings.

    Environmental allergy control

  • Researchers at Germany's University of Hohenheim have reported that fermentation of skim milk and sweet whey with a one-to-one mixture of the bacteria could reduce the quantity of beta-lactoglobulin, the main allergen in cows milk, by as much as 90 per cent.

    Fermentation Technique May Cut Whey Allergies

  • Even the possibility of the presence of an allergen is covered.

    Are Food Labels Giving the Right Info?

  • The major food allergens declaration must consist of the word ‘‘Contains’’ followed by a colon and the name of the food source source from which each major food allergen is derived (for example, ‘‘Contains: egg’’).

    A naive domestic Burgundy without any breeding. [contains dairy]

  • The cure is simple in concept, but not so simple in practice: remove all trace of the allergen from the mother's diet.

    Breastfeeding Babies with Dairy Allergies

  • I’m also making him drink tons of water to flush whatever the allergen is out of his system.

    DAY 14: HIVES!

  • It means that a much tighter control over the quantity of allergen is delivered, a more measurable and reproducible reaction, and, ultimately, more reliable and standardised screening for cow’s milk protein allergy.

    More Info on Diallertest Dairy Allergy Skin Test

  • An allergen is a protein that causes the immune system of a person allergic to it to launch an immune response or allergic reaction.

    Baby Bites

  • In a second study in the same journal, Waldinger's team decided to try treating two of the volunteers with hyposensitization therapy -- a well-known technique for treating allergies, also called allergen immunotherapy, which repeatedly exposes the body to small but gradually increasing amounts of the allergen over several years.

    Reuters: Top News


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