Allergen Definition
ălər-jən
allergens
noun
A substance inducing an allergic state or reaction.
Webster's New World
A substance, such as pollen, that causes an allergy.
American Heritage Medicine
(medicine) A substance which causes an allergic reaction.
Pollen, dust, and spores are common allergens.
Wiktionary
Other Word Forms of Allergen
Noun
Singular:
allergen
Plural:
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