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, often ...

A. Adrenaline: Adrenaline (or epinephrine) is a hormone produced by the kidneys in response to an emergency situation anaphylaxis . Adrenaline makes the heart beat faster ...

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

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 may ...

HON Allergy Glossary Allergy. Title page and introduction to the section on Allergies. Contains definitions and links to more specific information as well as search engines.

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.

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

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Definition of allergy from the Longman Online Dictionary of Contemporary English. The Longman English Dictionary provides support and resources for those who want to learn more ...

An allergy is a sensitivity to a specific substance which causes a negative bodily reaction, such as sneezing, wheezing, itching or difficulty breathing.

Allergy : (noun) 1: hypersensitivity reaction to a particular allergen; symptoms can vary greatly in intensity [syn: allergic reaction] Based on WordNet 2.0

allergy, hypersensitive reaction of the body tissues of certain individuals to certain substances that, in similar amounts and circumstances, are innocuous to other persons.

Find dictionary definitions, audio pronunciations, and spellings for allergy in the free online American Heritage Dictionary on Yahoo! Education

allergy noun - definition, audio pronunciation, synonyms and more for allergy noun: a condition that makes a person become ill or develop skin or breathing problems because ...

The AAAAI defines common allergy, asthma and immunology terms in this A - Z Dictionary.