allergy

As a noun allergy is

(pathology|immunology) a disorder of the immune system causing adverse reactions to substances (allergens) not harmful to most and marked by the body's production of histamines and associated with atopy, anaphylaxis, and asthma.

As a noun allergy is

(pathology|immunology) a disorder of the immune system causing adverse reactions to substances (allergens) not harmful to most and marked by the body's production of histamines and associated with atopy, anaphylaxis, and asthma.

As a noun allergy is

(pathology|immunology) a disorder of the immune system causing adverse reactions to substances (allergens) not harmful to most and marked by the body's production of histamines and associated with atopy, anaphylaxis, and asthma.

As a noun allergy

is a disorder of the immune system causing adverse reactions to substances (allergens) not harmful to most and marked by the body's production of histamines and associated with atopy, anaphylaxis, and asthma.

As an adjective antiallergy is

countering an allergy.

As nouns the difference between allergy and doxylamine

is that allergy is (pathology|immunology) a disorder of the immune system causing adverse reactions to substances (allergens) not harmful to most and marked by the body's production of histamines and associated with atopy, anaphylaxis, and asthma while doxylamine is an ethanolamine antihistamine used as a short-term sedative and in combination with other drugs for night-time cold and allergy relief.

As nouns the difference between allergy and antiallergic

is that allergy is (pathology|immunology) a disorder of the immune system causing adverse reactions to substances (allergens) not harmful to most and marked by the body's production of histamines and associated with atopy, anaphylaxis, and asthma while antiallergic is any drug of this kind.

As an adjective antiallergic is

that prevents, or relieves an allergy.

As nouns the difference between allergy and omalizumab

is that allergy is a disorder of the immune system causing adverse reactions to substances (allergens) not harmful to most and marked by the body's production of histamines and associated with atopy, anaphylaxis, and asthma while omalizumab is a monoclonal antibody used mainly in allergy-related asthma therapy with the purpose of reducing allergic hypersensitivity.

As a noun allergy

is (pathology|immunology) a disorder of the immune system causing adverse reactions to substances (allergens) not harmful to most and marked by the body's production of histamines and associated with atopy, anaphylaxis, and asthma.

As an adjective allergylike is

resembling an allergy.