Allergen

An allergen is a type of antigen that produces an abnormally vigorous immune response in which the immune system fights off a perceived threat that would otherwise be harmless to the body. Such reactions are called allergies. In technical terms, an allergen is an antigen capable of stimulating a type-I hypersensitivity reaction in atopic individua...
Found on http://en.wikipedia.org/wiki/Allergen

allergen

<immunology> An antigenic substance capable of producing immediate type hypersensitivity reaction (allergy). ... (06 Oct 1997) ...
Found on http://www.encyclo.co.uk/local/20973

allergen

(allergy + -gen) a antigenic substance capable of producing immediate-type hypersensitivity (allergy).
Found on http://users.ugent.be/~rvdstich/eugloss/DIC/dictio04.html

allergen

(al┬┤әr-jen) a substance, protein or nonprotein, capable of inducing allergy or specific hypersensitivity. a purified protein, most often of a food (such as milk, eggs, or wheat), a bacterium, or pollen, used to test a patient for hypersensitivity to specific substances (see skin test). Allergens may ...
Found on http://www.encyclo.co.uk/local/21001

allergen

noun any substance that can cause an allergy
Found on https://www.encyclo.co.uk/local/20974

allergen

[Noun] Plural form: allergens. Substances that cause an allergic reaction
Example: Dust, peanuts and cat hair are all common allergens.
Found on http://www.bbc.co.uk/skillswise/glossary/

Allergen

A substance that can produce an allergic reaction.
Found on http://www.cat-world.com.au/glossary

Allergen

a substance that causes an allergic reaction
Found on http://www.medichecks.com/glossary.cfm?ltr=A

Allergen

A substance that causes an allergic reaction in individuals sensitive to it.
Found on https://www.encyclo.co.uk/local/20094

allergen

A substance that causes an allergic response. Examples include pollen, molds, and certain foods.
Found on http://www.cancer.gov/dictionary?expand=A

Allergen

A substance that causes an allergy.
Found on http://www.gadsbywicks.co.uk/uploaded/3822.pdf

Allergen

A substance that causes the body to react hypersensitively to it
Found on http://www.i-sis.org.uk/Glossary.php

Allergen

A substance that is foreign to the body and can cause an allergic reaction in certain people. For examples, pollen, dander, mold.
Found on http://www.emedicinehealth.com/allergy_insect_sting/glossary_em.htm

Allergen

A substance that provokes an allergic response.
Found on http://www.superglossary.com/Glossary/Health/Vitamins/

Allergen

A substance, such as pollen or pet dander, that causes an allergy.
Found on http://www.apluspetgoods.com/petsupplies/dog-glossary.php

allergen

allergen A substance that is foreign to the body and can cause an allergic reaction in certain people; examples include: pollen, dander, mold; ragweed pollen is the allergen which causes hay fever.
Found on http://www.wordinfo.info/words/index/info/view_unit/84/

Allergen

Allergen is a substance that causes an allergic reaction.
Found on https://www.goodsalonguide.com/community/hair-and-beauty-glossary

Allergen

Allergen: A substance that is foreign to the body and can cause an allergic reaction in certain people. For examples, pollen, dander, mold.
Found on http://www.medterms.com/script/main/art.asp?articlekey=2194

Allergen

An allergen is a normal substance that causes an acute defensive reaction in a person's immune system. Common allergens are pet dander, smoke, and pollen, although the list of possible allergens is long and varied. When a person has a reaction to an allergen that person is said to be allergic to it.
Found on https://www.rabbitair.com/pages/air-purifier-glossary

Allergen

An allergen is a substance that reacts with the body's immune system and causes an allergic reaction.
Found on http://www.nhs.uk/Conditions/Pages/hub.xhtml

Allergen

An allergen is something that produces an allergic reaction.
Found on http://www.make-upusa.com/articles/cosmeticterms.htm

Allergen

An allergen is something that produces an allergic reaction.
Found on http://www.sherrayorganiccosmetics.com/did-you-know/beauty-skincare-glossar

Allergen

An antigen responsible for producing allergic reactions by inducing IgE formation.
Found on http://www.encyclo.co.uk/local/21016

allergen

An antigen that causes allergy.
Found on http://www.roitt.com/glossary.asp

Allergen

Any agent or substance that can trigger an allergic reaction. Common allergens include foods, molds, grass, weeds, pet dander, cigarette smoke and detergents. Researchers believe that avoiding foods that can cause allergies, such as peanuts and wheat, during pregnancy may prevent the offspring from developing certain food allergies.
Found on http://www.pregnology.com/Pregnancy-dictionary/
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