First Known Use: 1910
Dictionary
allergen
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
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Origin of ALLERGEN
International Scientific Vocabulary allergy + -gen
ALLERGENIC Defined for Kids
allergen
noun al·ler·gen \ˈa-lər-jən\
Definition of ALLERGEN for Kids
: a substance that causes an allergic reaction
Medical Dictionary
allergen
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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