"allergen" in English Allergen {n} allergen "allergen" English translation allergen Allergen Allergiestoff Detailed translations for "allergen" das Allergen{neuter} Allergen(also: Allergiestoff) allergen - Er hat ein Allergen eingeschleppt. Source: opensubtitles.org Corpus by OPUS Request review So the boyfriend brought in an allergen and is lying about it.