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allergen Definition

al·ler·gen (alər jən, -jen′)

noun

a substance inducing an allergic state or reaction

Etymology: Ger < allergie, allergy + -gen, -gen

allergen Related Forms

al′·ler·genic (-jenik) adjective

allergen Usage Examples

Converse of object

  • inhale: During allergen deposition the patient should hold their breath to avoid inhaling allergen into lower airways.
  • avoid: The results of a client avoiding known allergens can be dramatic.
  • destroy: The peas had passed this test. ¦ Cooking GM food will not necessarily destroy allergens.
  • remove: They can be better than drugs in relieving allergy symptoms as they remove the allergen from the air before you can inhale it.

Adjective modifier

  • inhalant: Exposure to tobacco smoke and certain inhalant allergens are also known to increase the risk of developing asthma.
  • airborne: It is claimed that these reduce the level of airborne cat allergen by about 50 % .
  • potent: Even the most potent potential allergens can be used safely.
  • known: The results of a client avoiding known allergens can be dramatic.
  • indoor: Pets are the second most important source of indoor allergens.
  • common: Free of common allergens: no sugar, yeast, wheat, gluten, soya, corn or dairy products.

Modifies a noun

  • immunotherapy: Is allergen immunotherapy effective in asthma: a meta-analysis of randomized controlled trials.
  • avoidance: Asthma: allergen avoidance web page by the American Medical Association is another source of information.
  • declaration: See the Guidance Notes on Food Labeling produced by the Food Standards Agency 11.4 What are the exceptions to allergen declarations on labels?
  • exposure: Risk factors for indoor allergen exposure: health aspects of indoor air: Berzelius Symposium XXVIII.

Noun used with modifier

  • mite: At night, in bed, we spend on average eight hours in close contact with large amounts of house dust mite allergen.
  • peanut: Six hands still had detectable levels of peanut allergen.
  • pollen: Trials on the regulation of IgE response in mice using modified birch pollen allergens.
  • dust: At night, in bed, we spend on average eight hours in close contact with large amounts of house dust mite allergen.
  • cat: Patients often assume that cat allergen is only present in the houses that are homes to cats.
  • food: Are there particular food allergens to be aware of?