Noun:

एलर्जी पैदा करने वाला तत्व, प्रत्यूर्जतोत्पादक पदार्थ,

allergen's Usage Examples:

Six hands still had detectable levels of peanut allergen.

They can be better than drugs in relieving allergy symptoms as they remove the allergen from the air before you can inhale it.

During allergen deposition the patient should hold their breath to avoid inhaling allergen into lower airways.

Antihistamines are most effective when taken before exposure to an allergen.

allergen exposure: health aspects of indoor air: Berzelius Symposium XXVIII.

allergen declarations on labels?

allergen avoidance web page by the American Medical Association is another source of information.

allergen immunotherapy effective in asthma: a meta-analysis of randomized controlled trials.

At night, in bed, we spend on average eight hours in close contact with large amounts of house dust mite allergen.

It is claimed that these reduce the level of airborne cat allergen by about 50% .

Synonyms:

substance, ragweed pollen,

Antonyms:

activator, approval, disapproval,