allergen

noun

al·​ler·​gen ˈa-lər-jən How to pronounce allergen (audio)
: a substance (such as pollen) that induces allergy
allergenic adjective
allergenicity noun

Examples of allergen in a Sentence

common allergens, such as pollen
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Mattress tool: This tool is for removing dirt, dust, and allergens from mattresses and upholstery—including couches and chairs. Brenda Stolyar, WIRED, 27 Nov. 2024 Touching it with your bare hands may not be a good idea for this reason and because the plant can absorb allergens and irritants if it’s lived in the same place for a long stretch of time. Mary Catherine McAnnally Scott, Southern Living, 27 Nov. 2024 This part of the label is extremely important for identifying food allergens and sensitivities. Jonathan Purtell, Verywell Health, 25 Nov. 2024 This gadget can be placed in your bedroom or living room, quietly cleaning the air and removing any allergens in the process. Claire Rutter, Rolling Stone, 22 Nov. 2024 See all Example Sentences for allergen 

Word History

Etymology

borrowed from German Allergen,, blend of allerg- (in Allergie allergy) and -gen (in Antigen antigen)

Note: See note at allergy.

First Known Use

circa 1907, in the meaning defined above

Time Traveler
The first known use of allergen was circa 1907

Dictionary Entries Near allergen

Cite this Entry

“Allergen.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/allergen. Accessed 10 Dec. 2024.

Kids Definition

allergen

noun
al·​ler·​gen ˈal-ər-jən How to pronounce allergen (audio)
: a substance (as pollen) that causes allergy
allergenic adjective

Medical Definition

allergen

noun
al·​ler·​gen ˈal-ər-jən How to pronounce allergen (audio)
: a substance that induces allergy
inhaled allergens
a suspected food allergen

More from Merriam-Webster on allergen

Last Updated: - Updated example sentences
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