allergen

IPA/ˈælədʒən/
KK[ˈælɚdʒən]IPA/ˈælərdʒən/

allergen — noun

  • allergensingular
  • allergensplural

1. a substance that is harmless to most people but causes a bad physical reaction k

1.名詞B2
釋義

a substance that is harmless to most people but causes a bad physical reaction known as an allergy in some people

例句

Wei discovered that peanuts were the main allergen causing his skin rash.

common + allergen for frequently seen causes

The clinic tested Trang for common household allergens like dust and pet hair.

同義詞
  • irritant

    broader term — an irritant causes discomfort or inflammation, but not necessarily an immune-system allergic reaction

  • trigger

    more general — a trigger is anything that sets off a reaction, not limited to allergies (e.g. asthma trigger)

文法句型

allergen + in/from + [source]

common/potential + allergen

用法筆記

Usually paired with 'common', 'potential', or a source word (food, pollen, dust) that identifies where the allergen comes from.

常見錯誤

❌The medicine caused an allergen on my skin.
✅The medicine caused an allergic reaction on my skin.
💡'allergen' is the substance that causes the allergy, not the reaction itself.