• A condition in which the body has an exaggerated response to a substance (eg food or drug). Also known as hypersensitivity.

    Allergy meaning & definition 1 of Allergy.

  • A damaging immune response by the body to a substance, especially a particular food, pollen, fur, or dust, to which it has become hypersensitive.

    Allergy meaning & definition 2 of Allergy.

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