Hypersensitivity vs. Allergy

Hypersensitivitynoun

Any heightened immune response to an antigen; an allergy; hypersensation.

Allergynoun

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.

Hypersensitivitynoun

The state of being easily offended or hurt.

Allergynoun

(pathology) Any condition of hypersensitivity to a substance.

Hypersensitivitynoun

pathological sensitivity

Allergynoun

Altered susceptibility to a first treatment as exhibited in reaction to a subsequent one.

Hypersensitivitynoun

extreme sensitivity

Allergynoun

(informal) An antipathy, as toward a person or activity.

‘He has an allergy to reality TV.’;

Hypersensitivity

Hypersensitivity (also called hypersensitivity reaction or intolerance) refers to undesirable reactions produced by the normal immune system, including allergies and autoimmunity. They are usually referred to as an over-reaction of the immune system and these reactions may be damaging and uncomfortable.

Allergynoun

hypersensitivity to a particular substance.

Allergynoun

hypersensitivity reaction to a particular allergen; symptoms can vary greatly in intensity

Allergy

Allergies, also known as allergic diseases, are a number of conditions caused by hypersensitivity of the immune system to typically harmless substances in the environment. These diseases include hay fever, food allergies, atopic dermatitis, allergic asthma, and anaphylaxis.