allergen

A substance that can trigger an allergic reaction in a susceptible individual.

ruВещество, которое может вызвать аллергическую реакцию у восприимчивого человека.esSustancia que puede provocar una reacción alérgica en una persona susceptible.frSubstance qui peut déclencher une réaction allergique chez une personne sensible.deEin Stoff, der bei einem dafür empfindlichen Menschen eine allergische Reaktion auslösen kann.ptSubstância que pode desencadear uma reação alérgica em uma pessoa suscetível.zh能引起过敏反应的物质，通常为蛋白质，如花粉、尘螨、食物等，进入人体后可使易感者产生过敏。arمادة يمكن أن تثير رد فعل تحسسي لدى الشخص القابل للحساسية.

1. Substance causing allergic reaction B2 formal medical

   A substance that can cause an allergic reaction in a person or animal.

   • Pollen is a common allergen that affects many people in spring.
   • Dust mites are a frequent indoor allergen.
   • Peanuts are a well-known food allergen.

   ruАллергенesAlérgenofrallergènedeAllergenptAlérgenozh过敏原arمُسبب الحساسية

• allergens plural form
• allergens' possessive plural form
• allergen's possessive singular form