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noun al·ler·gen \ˈa-lər-jən\

medical : a substance that causes an allergy

Full Definition of ALLERGEN

:  a substance (as pollen) that induces allergy
al·ler·gen·ic \ˌa-lər-ˈje-nik\ adjective
al·ler·ge·nic·i·ty \ˌa-lər-jə-ˈni-sə-tē\ noun

Examples of ALLERGEN

  1. common allergens, such as pollen

Origin of ALLERGEN

International Scientific Vocabulary allergy + -gen
First Known Use: 1910

Other Medicine Terms

analgesia, angina, diabetes, hepatitis, homeopathy, logorrhea, palliate, pandemic
ALLERGENS Defined for Kids


noun al·ler·gen \ˈa-lər-jən\

Definition of ALLERGEN for Kids

:  a substance that causes an allergic reaction
Medical Dictionary


noun al·ler·gen \ˈal-ər-jən\

Medical Definition of ALLERGEN

:  a substance that induces allergy <inhaled allergens> <a suspected food allergen>


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