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When exposed, the body produces an antibody known as Immunoglobulin E (IgE), which binds to the allergen and triggers immune cells to release histamine and other chemicals.—New Atlas, 3 July 2025 Prime subscribers can also score savings on household essentials, like a best-selling Levoit air purifier, which tackles airborne allergens and pollutants, plus a cordless vacuum that doubles as a handheld to clean above-ground messes.—Clara McMahon, People.com, 2 July 2025 Rugs, upholstered furniture, and antiques should be thoroughly cleaned or professionally treated to remove dirt, allergens, and any unwelcome critters.—Brandee Gruener, Southern Living, 29 June 2025 This helps capture fine particles and allergens—sometimes up to 99.99%—for an incredibly thorough clean.—Nashia Baker, Architectural Digest, 26 June 2025 See All Example Sentences for allergen
Word History
Etymology
borrowed from German Allergen,, blend of allerg- (in Allergieallergy) and -gen (in Antigenantigen)
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