allergen

As nouns the difference between allergen and positions

is that allergen is allergen while positions is .

As a verb positions is

(position).

As nouns the difference between poison and allergen

is that poison is a substance that is harmful or lethal to a living organism while allergen is allergen.

As a verb poison

is to use poison to kill or paralyse somebody.

As nouns the difference between allergies and allergen

is that allergies is plural of lang=en while allergen is a substance which causes an allergic reaction.

As nouns the difference between allergen and anaphylactogen

is that allergen is allergen while anaphylactogen is (medicine) a substance likely to or capable of producing an adverse reaction (anaphylaxis) in a person.

As nouns the difference between allergen and irritant

is that allergen is allergen while irritant is any medication designed to cause irritation.

As an adjective irritant is

causing irritation or inflammation.

As nouns the difference between allergen and allergen

is that allergen is allergen while allergen is allergen.

As nouns the difference between allergen and irritants

is that allergen is a substance which causes an allergic reaction while irritants is plural of irritant.

As nouns the difference between allergen and nonallergen

is that allergen is a substance which causes an allergic reaction while nonallergen is any substance that is not an allergen.