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allergens - 3 dictionary results

al⋅ler⋅gen

[al-er-juhn, -jen]
–noun Immunology.
any substance, often a protein, that induces an allergy: common allergens include pollen, grasses, dust, and some medications.

Origin:
1910–15; aller(gy) + -gen
al·ler·gen   (āl'ər-jən)   
n.  A substance, such as pollen, that causes an allergy.

[German Allergen : Aller(gie), allergy; see allergy + -gen, -gen (from French -gène; see -gen).]
al'ler·gen'ic (-jěn'ĭk) adj.
allergen   (āl'ər-jən)  Pronunciation Key 
A substance, such as pollen, that causes an allergic reaction.
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