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Definition of allergy

allergy

/ˈæl.ɚ.dʒi/
al · ler · gy
Adverb:allergically
•
Plural:allergies
•
Adjective:allergic
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allergy Lexical Profile

allergy Game Scores & Validity

• noun

1

A damaging immune response by the body to a substance, especially pollen, fur, a particular food, or dust, to which it has become hypersensitive.

Example

"She carries an epinephrine auto-injector at all times because of her severe peanut allergy."

2

A strong, informal antipathy or aversion toward someone or something.

Example

"The editor had a well-known allergy to clichés and overly ornate prose."

Synonyms
View all synonyms for allergy
Antonyms
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• Rhymes for allergy

• Nearby Words

allergenic
allergic
allergist
allergy
alleviate
alleviation
alley

Word Origin & Etymology

Coined in 1906 by the Austrian pediatrician Clemens von Pirquet as German 'Allergie', formed from the Ancient Greek 'allos' (other, different) and 'ergon' (work, activity), originally denoting an altered reactivity of the immune system.

Cite this Entry

Wordmom. (2026). Definition of Allergy. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/allergy
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