al·ler·gy (l r-j) n. pl. al·ler·gies. 1. An abnormally high sensitivity to certain substances, such as pollens, foods, or microorganisms. Common indications of ...

Allergy information includes articles on allergies, symptoms, treatment, medications, food allergies, and allergy relief.

noun, plural al·ler·gies. 1. an abnormal reaction of the body to a previously encountered allergen introduced by inhalation, ingestion, injection, or skin contact ...

An allergy is a hypersensitivity disorder of the immune system. Allergic reactions occur when a person's immune system reacts to normally harmless substances in the ...

Definition of ALLERGY. 1: altered bodily reactivity (as hypersensitivity) to an antigen in response to a first exposure <a bee venom allergy so severe that a second ...

Allergies Definition. Allergies are abnormal reactions of the immune system that occur in response to otherwise harmless substances. Description

allergy /al·ler·gy/ (al´er-je) a hypersensitive state acquired through exposure to a particular allergen, reexposure bringing to light an altered capacity to react.

Definition By Mayo Clinic staff. Allergies occur when your immune system reacts to a foreign substance such as pollen, bee venom or pet dander. Your immune system produces ...

A common trigger for allergies. See the entire definition of Mold. Mouth: 1. The upper opening of the digestive tract, beginning with the lips and containing the teeth, gums ...

a hypersensitivity to a specific substance (such as a food, pollen, dust, etc.) or condition (as heat or cold) which in similar amounts or degrees is harmless to most ...

Definition By Mayo Clinic staff. Food allergy is an immune system reaction that occurs soon after eating a certain food. Even a tiny amount of the allergy-causing food can ...

Hypersensitivity caused by exposure to a particular antigen (allergen) resulting in a marked increase in reactivity to that antigen on subsequent exposure, sometimes ...

allergen n. A substance, such as pollen, that causes an allergy. [German Allergen : Aller(gie) , allergy; see allergy

Define allergy in American English. What is allergy? allergy meaning and more by Macmillan Dictionary

NY Allergist for Allergy, Sinus & Asthma Center with Testing & Treatment in New York City Allergist, Manhattan Allergist, and Ridgewood. Allergy Triggers.

Definition and other additional information on Allergy from Biology-Online.org dictionary.