Allergy

/ˈæl.ər.dʒi/

Meaning & Definition

noun

A hypersensitivity disorder acquired by exposure to a specific antigen, leading to exaggerated immune responses.

She discovered her allergy to peanuts after experiencing a severe reaction.

A condition marked by an abnormal reaction to a substance, such as pollen, dust, or certain foods.

His grass pollen allergy causes him to sneeze and have itchy eyes in the spring.

A medical condition resulting from exposure to a typically harmless substance that causes an immune response.

Her doctor suggested she get tested for allergies after she complained of frequent hives.

A negative or adverse reaction to a particular substance or situation.

He has a strong allergy to being in crowded places.

From the Greek 'allos' meaning 'other' and 'ergon' meaning 'work'.

food allergy

A type of allergy triggered by certain foods.

seasonal allergy

An allergic reaction that occurs at certain times of the year, often due to pollen.

allergic reaction

The response of the immune system to an allergen.

allergen

A substance that causes an allergic reaction.

anaphylaxis

A severe, potentially life-threatening allergic reaction.

Hay fever

I've got hay fever really bad this time of year.

Alergy

I couldn't eat that; I'm allergy to shellfish.