Immunologic Factor
allergen Audio
al·ler·gen [ al-er-juhn, -jen ]
Subclass of:
Antigens
Definitions related to allergens:
  • A substance such as fur, pollen, or dust that produces an allergic reaction.
    Harvard Dictionary of Health Terms
    Harvard Medical Publishing, 2011
  • A substance that causes an allergic response. Examples include pollen, molds, and certain foods.
    NCI Dictionary of Cancer Terms
    U.S. National Cancer Institute, 2021
  • A substance that elicits an allergic reaction.
    NCI Thesaurus
    U.S. National Cancer Institute, 2021
  • Antigen or hapten capable of provoking an allergic response; post coordinate with appropriate source of allergen, ie, DOG or INSECT POISON.
    CRISP Thesaurus
    National Institutes of Health, 2006
  • Antigen-type substances that produce immediate hypersensitivity (HYPERSENSITIVITY, IMMEDIATE).
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2021
  • Allergen, substance that in some persons induces the hypersensitive state of allergy and stimulates the formation of reaginic antibodies. Allergens may be naturally occurring or of synthetic origin and include pollen, mold spores, dust, animal dander, insect debris, foods, blood serum, and drugs....
    Encyclopedia Britannica
    Encyclopedia Britannica, Inc., 2020
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